Mathematics Middle School

help meeeeeeeeeeeeeeeee

Answers

Answer 1

Answer:

3205

Step-by-step explanation:

3÷3=9

3÷2=6

3÷5=15

Answer 2

Answer:

Step-by-step explanation:

Related Questions

The first box choice is correct or incorrect. The second box is true or false. third is no solution, one solution or infinitely many solutions.

Answers

Answer:

The first box is correct the second box is false the third box ix is one solution

Step-by-step explanation:

Ariel is correct. For any value of y, the statement -12=3 is always false. The equation has no solution.

Will mark Brainliest if you help me quickly! Helppppp!

Write a system of equations to describe the situation below, solve using substitution, and fill in the blanks.

Caleb and his mom are planting vegetables in their garden. Caleb has finished planting 11 rows of carrots so far and is planting new rows at a rate of 4 rows per hour. His mom has finished 1 row of tomatoes and will continue planting at 5 rows per hour. Once the pair get to the point where they have finished the same number of rows, they will take a break and decide what to plant next. How many rows will they each have completed? How long will that take?

Caleb and his mom will each be done planting ? Rows in ? Hours.
IXL question help me!

Answers

Answer:

Let C represent the total cost of each deal

Let T be the number of trips down the water slide

C = 32 for the 1st deal since the cost is the same regardless of how much she rides

C = 18 + T for the 2nd deal

To find when the two costs are equal set them equal to each other and solve for T

32 = 18 + T

T = 14 trips

The cost must be $32 since that is the only cost possible for the 1st deal

Step-by-step explanation:

Bryan randomly asked several students which type of animal they had at home as a pet. The results are in the pie chart below.

a. What percent of the students had dogs?

b. What percent of the students had birds?

c. How many total students did Bryan interview?

Answers

Answer:

60% of the students have dogs

10% of the students have birds

Bryan interviewed 200 students

Step-by-step explanation:

a.3/5 = 60%

b.60% + 30% = 90%

100% - 90% = 10%

c. 20 x 10 = 200

Answer: 60%, 10%, 200 students.

Step-by-step explanation:

Let's start with turning all of the values into percentages.

3/5 of the students said dogs. As a percentage, 3/5 is equal to 60%.

We now have two percentages, the amount of cats and the amount of dogs. 30%+60%=90%. So that leaves 10%, and that 10 percent is the 20 students who had birds.

If 20=10%, all we have to do is multiply 20 ten times to get to 100%. 20x10=200.

There were 200 students interviewed.

Aisha wants to paint the four walls of her living room. Each wall is 2.1 m high and 4.5 m long. One wall has a door of 1.8 m by 0.9 m. Tins of paint cost £10 per 1.5 L tin. Each litre of paint can cover 12 m2 of wall. There is an offer of: Buy 2 tins get the 3rd at half price. How much will Aisha pay to paint her living room?

Answers

Answer:

£25 or £20.10

Step-by-step explanation:

calculate the area to be painted:

2.1x4.5= 9.45m^2 for each wall

x4= 37.8m^2

area of door= 1.8x0.9= 1.62m^2

subtract the area of the door from the wall area

37.8-1.62= 36.18m^2 to be painted

divide the area by the area that 1L of paint can cover

16.18/12= 3.015 L needed

if 1.5L= £10 then, 3L= £20. she needs 2 cans + an extra 0.015 L- so another can (3 cans total) add price up.

£30- but buy 2 get 3rd 1/2 price, so take £5 off. price is £25

calculate price for 0.015L

1.5=£10

divide both sides by 100

0.015= £ 0.10

if 1.5L= £10 then, 3L= £20. she needs 2 cans + an extra 0.015 L

£20+£0.10= £20.10

I DONT KNOW IF THIS IS RIGHT but hope it helps :)

Answer: 25

Step-by-step explanation:

Lewis told me

Eli and Dylan are brothers and decide to have a race from one end of the street to the other. Since Eli is older, he gives Dylan a 20-foot head start. Dylan can run 4 feet every second. Eli can run 6 feet every second.
Eli: y=6x
Dylan: ?
Write your answer as a sentence:
Please can someone help me? I’m having trouble understanding. And I’m quarantined without help!

Answers

Answer:

x=4

sorry if its wrong i did my best

Banana Cupcakes
makes 10 cupcakes

1 cup granulated sugar

cup vegetable oil

1 large egg

4 tablespoons sour cream

2 medium-sized ripe bananas, mashed

1 cups all-purpose flour

1 teaspoon baking soda

teaspoon salt

1 teaspoon vanilla extract

pinch of nutmeg

You will use the recipe above to answer the following questions:

This recipe serves 10, but you need to serve 30. What number will you need to multiply the amount of each ingredient by to adjust the recipe? How did you determine this number?
How much vegetable oil do you need for 30 cupcakes?
How much flour do you need for 30 cupcakes?
What is the difference in the amount of vanilla extract you would need for 30 cupcakes?
What is the difference in the amount of salt you would need for 30 cupcakes?
In the real world, even though you make adjustments to a recipe to accommodate the number of people you need to serve, you sometimes round the amount of an ingredient instead of using an exact amount. Which ingredient would it make more sense to round rather than coming up with the exact amount? Why?

Answers

Answer: Hey give me 1 hour and ill answer it I'm doing odessyware rn so Ill get back to you later appreciate yo patients.

Step-by-step explanation:

Here we have a recipe that works for 10 serves.
Then, if we want to make 30 servings, we need to use that recipe 3 times. (because x*10 = 30, then x = 30/10 = 3)
This would be equivalent to multiply each ingredient by 3.
for 30 cupcakes we need:
3 cups of vegetable oil.
3 cups of all-purpose flour
(because for each one of these ingredients we needed only 1 cup to make 10 cupcakes).
for 10 cupcakes we need 1 teaspoon of vanilla.
for 30 cupcakes we need 3 teaspoons of vanilla, the difference is 3 - 1 = 2.
So the difference is 2 teaspoons.
About which quantities we should round are those where we may have mixed numbers or big numbers.
For example, we have 4 tablespoons of sour cream for 10 servings, then for 30 servings we should have:
3*4 = 12 tablespoons.
We could round this down to 10 tablespoons.

Hope this helped

I almost broke my brain doing this so can you give me brainliest answer please thank you

Irene is 13 and
3
4
years old. Sheila is 1 and
1
2
years older than Irene, and Jane is 1 and
1
5
years older than Sheila. How old is Jane?

Answers

Answer: 12 years older

Step-by-step explanation:

What is the measurement of the longest line segment in a right rectangular prism that is 11.2 centimeters long, 6.6 centimeters wide, and 6 centimeters tall?

Answers

Answer:

Step-by-step explanation:

3.1313109

Answer: the answer should equal 3.131

Step-by-step explanation: as this is the measurement of the longest line in right rectangular prism.

Please got brainliest

Proportional relationships, please answer all of the parts! Thank you!

Answers

Answer:

a. No (see below)

b. (see below)

c. Johnny

d. Johnny = $12.50 / hour Doug = $9.16... / hour

e. Doug: extend the table to show how much he gets paid for 1 hour of work (the unit rate)

Johnny: already on the graph

Step-by-step explanation:

a. No. This is because a proportional relationship would have a certain ratio between payment and the amount of time spent working, which would not change. However, if Doug's neighbour pays him $55 for 6 hours, it's likely that this is not a proportional relationship, or we would be able to divide $55 by the 6 hours Doug spent working.

b. Even though above I said that it's probably not a proportional relationship, if it were, we would have to divide everything equally. I'm guessing the table should look like this:

Doug

Time (hr) Earnings ($)

4 $36.66...

5 $45.8333...

6 $55

7 $64.4666....

8 $73.333...

To work out how much Doug would get for working 4 hours:

4/6 x $55 = 2/3 x $55 = $36.66... (so definitely not a proportional relationship)

To work out how much Doug would get for working 5 hours:

5/6 x $55 = $45.8333.... (more evidence that this is not a proportional relationship)

To work out how much Doug would get for working 7 hours (we already got 6 hours):

7/6 x $55 = $64.4666...

To work out how much Doug would get for working 8 hours:

8/6 x $55 = $73.33... (we could double the 4 hour payment, but this is probably more accurate)

c. Johnny is getting paid more. If we look at how much Doug gets for 6 hours, it's $55. If we look out at how much Johnny gets for 6 hours, it's $75. (If we do the same with the other amounts of time, it's the same.

4 hours: D = $36.67 vs J = $50

5 hours: D = $45.83 VS J = $60

etc...

d. Johnny gets $75 per 6 hours --> 75/6 = $12.50 per hour

Doug gets $55 per 6 hours --> 55/6 = $9.1666... per hour

e. Carry on the table for Doug all the way to 1, so you can see the how much Doug gets paid for 1 hour of work (i.e. the minimum).

The unit rate is already on the graph for Johnny.

HOPE THIS HELPED :)

P.S. Mate cld you please give me Brainliest? That table took so much dam work

I agree with the other person

(2x+1)(x+5)
6x-4xy
16x^2-25

Answers

-32xy-25 try dat anyways have a nice dayyyy byeeeee

Step-by-step explanation:

i believe what you need help on is simplifying the equations. so let's start with the first one.

====================================================================

(2x+1)(x+5) original problem

(2x)(x)+(2x)(5)+(1)(x)+(1)(5) we can break this down into smaller pieces so we know what we're dealing with in this equation.

2x2+10x+x+5 if we break this down a little more and add some bracket numbers, this is what we get.

2x2+11x+5 this is the most simplified equation.

====================================================================

6x−4xy original problem.

unlike the last problem, we can easily just... 6x + (−4xy).

−4xy+6x this is the most simplified equation.

====================================================================

ok, the last one. phew!

unfortunately, 16x^2-25 is actually the simplest it can get. so, let's try factoring.

if we factored, we would get...

(4x+5)(4x−5)

===================================================================

hope this helps! :>

Please help me solve -1/3(9x-18)+8x

Answers

Answer:

5x+6

Step-by-step explanation:

Distribute then add like terms.

Answer: 5x+6
Explanation: *remember PEMDAS*
-1/3(9x-18)+8x
Distribute -1/3 to 9x and -18
This will get you -3x+6
Your equation will now be -3x+6+8x
Combine like terms (the x’s) to get 5x+6

Please help Math will mark brainlyest

Answers

Answer:

Ask a tutor

Sorry, but you would need to take pictures of the slides so we know what to choose from.

Im Confused…

( The question is in the image )

Answers

Answer:

488

Step-by-step explanation:

Area of rectangle: 17 x 22 = 374

Area of triangle: 22 - 10 = 12

0.5(12 x 19) = 114

Add them together: 374 + 114 = 488

Please Help I can figure out the other two parts. :']

Answers

Answer: I have no answer

Step-by-step explanation:

lol im doing the same thing right now sometimes you just gotta cheat!

Answer:

i have no idea

Step-by-step explanation:

how can you copy a line segment using a straightedge, a compass, and a pencil, give step by step instructions

Answers

You can can copy a line segment by making sure the line is straight

The first step in the process for factoring the trinomial x^2-3x-40 is to

Answers

(x-8)(x+5)

First thing you do is put the X's into the parentheticals because it is x^2 meaning there are 2 factors with x's. Then, you wonder what factors of -40 could add to get -3. In this case, they are -8 and 5. -8 times 5 is -40 and -8 +5 is -3. Then, you just add -8 and 5 beside the x's in the parentheticals.

Answer:

= (x - 8)(x + 5)

If it is an equation which just means it is equal to zero e.g. x^2 - 3x - 40 = 0

then we would continue and write our x values!

So assuming it was an equation here is the rest of the working:

x - 8 = 0 x + 5 = 0

x = 8 x = -5

x = 8, x = -5

Hope this helped!

Step-by-step explanation:

PLEASE HURRY AM TIMED
3 1/3÷1 1/4 to the nearest whole number.

Answers

Answer:

exact form: 8/3

decimal form: 2.6

mixed number form: 2 2/3

Step-by-step explanation:

Here's what the problem looks like.

Answers

Answer: It is the first one.

Step-by-step explanation: Give brainliest

I need some help for this and the graph won’t let you use decimals as the answer. Tip: 1/3 = 0.3
.

Answers

Answer:

$\large\begin{array}{|c|c|}\cline{1-2}x&y\\\cline{1-2}6&2\\\cline{1-2}12&4\\\cline{1-2}18&6\\\cline{1-2}\end{array}$

See attachment for the graph of the equation.

Step-by-step explanation:

Given equation:

$y=\dfrac{1}{3}x$

To complete the table, find the corresponding values of y by substituting each given value of x into the equation.

$x=6 \implies y=\dfrac{1}{3}(6)=\dfrac{6}{3}=2$

$x=12 \implies y=\dfrac{1}{3}(12)=\dfrac{12}{3}=4$

$x=18 \implies y=\dfrac{1}{3}(18)=\dfrac{18}{3}=6$

Therefore the completed table is:

$\large\begin{array}{|c|c|}\cline{1-2}x&y\\\cline{1-2}6&2\\\cline{1-2}12&4\\\cline{1-2}18&6\\\cline{1-2}\end{array}$

To graph the equation, plot the ordered pairs on the given coordinate plane:

(6, 2)(12, 4)(18, 6)

Draw a straight line through the points. (See attachment).

(6,2),(12,4),(18,6) would be correct

A scuba diver is 15.5 feet below the surface of the water. If the diver continues to swim downward at a rate of 2.5 feet per second, what is her location, in feet, relative to the surface after 712 seconds? feet

Answers

The answers is: 33

33 is the integer that represents her location relative to the surface after 7 seconds.

And 33 feet far the diver have to go to return to the surface.

Step-by-step explanation:

Given:

A scuba diver is 15.5 feet below the surface of the water.

The diver continues to swim downward at a rate of 2.5 feet per second.

Now, to find the integer represents her location relative to the surface after 7 seconds.

And to find how far does the diver have to go to return to the surface.

So, to get the integer represents her location relative to the surface after 7 seconds.

Initial depth = 15.5 feet.

Distance traveled down = 7 × 2.5 = 17.5 feet.

Final depth of water surface = Initial depth + Distance traveled down.

Final depth of water surface = 15.5 feet + 17.5 feet.

Final depth of water surface = 33 feet.

Thus, 33 is the integer represents her location relative to the surface after 7 seconds.

Now, to get how far does the diver have to go to return to the surface:

As, the diver goes to 33 feet down to the surface.

Thus, the diver to return she have to go through the same distance.

So, to return to the surface she need to go to 33 feet far.

Therefore, 33 is the integer that represents her location relative to the surface after 7 seconds.

And 33 feet far the diver have to go to return to the surface.

33! hope this helped

This scatter plot shows the relationship between the time studied and the percent score on an exam taken by 11 students in a class. Noting the trend in the scatter plot, which is the most reasonable approximation of the percent score earned by a student who studies for 120 minutes for this test?

Answers

I think the answer is 90%, I could be wrong though

Answer:

Step-by-step explanation:

The speed of the jet Alyssa flew on from Boston to London was 480 mph. On her return flight, the speed of the jet was 600 mph with a tail wind. What was Alyssa's average speed on the round trip? Round your answer to one decimal place.

P.S: The answer is not 540

Answers

Answer:

the ansere is -20

Step-by-step explana

The speed is given by the arithmetic mean. Then the jet Alyssa's average speed on the round trip is 540.

What is the average speed?

The total distance covered by the particle or the body in a total time is called average speed. It is a scalar quantity. It is the ratio of distance to time.

We know that the average speed formula

$\rm v_{a} = \dfrac{v_1+ v_2}{2}$

The speed of the jet Alyssa flew on from Boston to London was 480 mph.

On her return flight, the speed of the jet was 600 mph with a tailwind.

Then the average speed of the jet will be

$\rm v_{a} = \dfrac{v_1+ v_2}{2}\\\\v_{a} = \dfrac{480 + 600}{2}\\\\v_{a} = 540\ mph$

More about the average speed link is given below.

https://brainly.com/question/7359669

A 3-pound box of blackberries costs $7.68. What is the price per ounce? This is for IXL Diagnostic due Feb 5.

Answers

Answer: 2.56 per pound

Step-by-step explanation:

Jim bought 5 packs of red bouncy balls, 2 packs of yellow bouncy balls, and 7 packs of green bouncy balls. There were 7 bouncy balls in each package. How many bouncy balls did Jim buy in all?

Answers

Answer:

108 bouncy balls

Step-by-step explanation:

2*7=14

5*7=35

7*7=49

14+35+49+108

He bout 98 bouncy balls

What is likely to have a mass close to 3 kilograms
A. 5-year-old-child
B. A Bowling ball
C. A lemon
D. A lion

Answers

B. A Bowling ball

3 kilograms is approximately 7 pounds, the weight of most Bowling balls

B. A Bowling ball

Step-by-step explanation:

Options A and D are most likely to weigh more than 3kg and option C will most likely weigh less but option B can weigh up to 3kg

The two dot plots below compare the forearm lengths of two groups of schoolchildren:

Based on visual inspection of the dot plots, which group appears to have the longer average forearm length? (5 points)

a
Group B, because three children in the group have the least forearm length of 11 inches

b
Group A, because three children in the group have the least forearm length of 11 inches

c
Group A, because seven children have a forearm length longer than 12 inches

d
Group B, because two children have a forearm length longer than 12 inches

Answers

Answer: B

Step-by-step explanation:looky

The answer is b I think

YALL! WHAT IS THE ANSWER?! HELP ASAP!
q:
choose the different ways that a graph can be misleading (select all that apply)
a:
1- the y-axis starts at zero and uses consistent intervals
2- different bar heights are used on the same graph
3- the y-axis doesn't start at zero
4- the intervals on the y-axis are too large
5- different bar widths are used on the same graph
6- the y-axis starts at zero but has different intervals

Answers

Answer:

Step-by-step explanation:

Here’s the answers :

6-The y -axis starts at zero but has different intervals.

5- Different bar widths are used on the same graph.

3- The y -axis doesn't start at zero.

help me please :))))))))))))

Answers

Answer:

dilation of 1/4 about the origin

Step-by-step explanation:

D is the correct answer I know because I answered this on one of my test and got it correct.

Solve the inequality below.

f2−9>−5

Answers

Answer:

f>2 or f<-2

Step-by-step explanation:

f^2−9>−5

Add 9 to each side

f^2−9+9>−5+9

f^2 >4

Take the square root of each side, remembering to flip the sign of the inequality for the negative

f>2 or f<-2

Answer:

f>2 or you could do f<-2

Step-by-step explanation:

f^2−9>−5

Add 9 to each side

f^2−9+9>−5+9

f^2 >4

f>2 or f<-2

Find the value of x in the isosceles triangle shown below

Answers

Answer:

x = 10

Step-by-step explanation:

if there 2 same triangle then they are right triangle

By using Pythagorean theorem for 1 of right triangle, we have

$\sqrt{74} ^{2}$ = $7^{2}$ + $(\frac{x}{2}) ^{2}$

74 = 49 + $\frac{x^{2}}{4}$

74 - 49 = $\frac{x^{2}}{4}$

25 = $\frac{x^{2}}{4}$

therefore, x = $\sqrt{25*4}$ = $\sqrt{100}$ = 10

X=10 you’ll have to break down your equation to solve the square root.

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