Mathematics Middle School

Please help Summer homework C:

Answers

Answer 1

Answer:

x = 4

Step-by-step explanation:

multiply both sides by six to get rid of the fractions: -5 x = - 20

divide both sides by -5: x = 4

Related Questions

Please help and give correct answer

If AB=3 cm, AC=5 cm, CD=3 cm, and CE=5 cm, what additional information is needed to prove △ABC≅△DEF?

BC=3 cm and AB=3 cm

BC=4 cm and DE=4 cm

BC=5 cm and CE=5 cm

DE=3 cm and CD=3 cm

Answers

Answer:

The correct option is;

BC = 4 cm and DE = 4 cm

Step-by-step explanation:

The given sides parameters are;

In ΔABC

AB = 3 cm

AC = 5 cm

In ΔDEF

CD = 3 cm

CE = 5 cm

We note that the point F on ΔDEF is the same as point C on ΔABC

For the two triangles to be congruent, the third side must be equal hence e have;

Where ∠B = ∠D = 90°

Hence, AC² = AB² + BC²

∴ BC = √(5² - 3²) = 4

Similarly,

CE² = CD² + DE²

∴ DE = √(5² - 3²) = 4

Hence the additional information needed to prove that ΔABC ≅ ΔDEF is BC = 4 cm and DE = 4 cm.

PLEASE HURRY I NEED THE ANSWER FAST!!!

Answers

Relative minimum: The coldest temperature outside the car was -4°C.

The negative interval is: between the 110th and 170th kilometers, the outside temperature was below zero.

The increasing interval was: over the first 50 km, the temperature outside the car got warmer.

How to Interpret the Quadratic Graph?

The relative minimum or maximum of a graph is:

A relative maximum point is a point where the function changes direction from increasing to decreasing (making that point a "peak" in the graph).

A relative minimum point is a point where the function changes direction from decreasing to increasing (making that point a "bottom" in the graph).

Thus, the relative minimum of the graph is -4°C.

The negative interval is between the 110th and 170th kilometers, the outside temperature was below zero.

The increasing interval was over the first 50 km, the temperature outside the car got warmer.

Read more about Quadratic Graph at: https://brainly.com/question/14477557

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Very good advice on how I can get a good job at a business and I know I will do well to do

Hey can anyone draw on this and then show it through answers? I'm sorry if this takes long but I have column 1 and some of column 2 done

Answers

Answer:

It's to hard bro

Step-by-step explanation:

it’s kind of hard to see

Do the ratios 9:20 and 3:4 form a proportion?

Answers

Answer: yes they do form a proportion

Step-by-step explanation:

3
10
and
9
20
do not form a proportion because
3
10
does not equal
9
20
Explanation:
A proportion, by definition, means that two ratios are equal.
To check if two ratios are equal, you have to bring both to their simplest form and see if you get the same value.
Let's look at the two ratios we have and see if we can simplify them.
3
10
cannot be simplified any further because
3
and
10
do not have any common factors.
9
20
also cannot be simplified any further for the same reason - this means that the two ratios we had are already in simplest form.
Therefore,
3
10
and
9
20
do not form a proportion because
3
10
does not
=

9
20
3
10
and
6
20
would have formed a proportion though because we can simplify
6
20
by dividing the numerator and denominator by the common factor of
2
to get
3
10
.

2. If the point (−4, 3) lies on the graph of y = f(x), which of the points below MUST lie on the graph of y = f−1(x) ?

Answers

Answer:

(3, - 4 )

Step-by-step explanation:

Given a point (x, y ) on the graph of y = f(x) then the corresponding point on the inverse function is (y, x ), thus

(- 4, 3 ) is a point on f(x), then

(3, - 4 ) is the corresponding point on $f^{-1}$ (x)

Help pls- I can't, my brain hurts-

Answers

28x + 15y
x represents the amount of sweatshirts and y represents the amount of sweatpants

28 dollars for each sweatshirt with x players wanting sweatshirt
15 dollars for each sweatpants with y players wanting each sweatshirt
So the expression is 28x+15y to get the total amount of money

Questions 1 and 4
Please help ASAP bc it is due tmr

Answers

Answer: explanation

Step-by-step explanation:

I am unsure about number 1, but for number 4, you have to fund the unit rate.

Answer:

Answer for Number 1: 54 1/2

Answer for Number 4: $2.36

Step-by-step explanation:

Explanation for number 1:

1. length x width = area right? So area divided by length = width!

159 3/8 divided by 18 3/4 = 8 1/2

2. width + width + length + length = perimeter right? Now you know the

width, you can do...

8 1/2 + 8 1/2 + 18 3/4 + 18 3/4 = 54 1/2

Explanation for number 4:

1. You know that 4 cup = 1 quart right?

9.44 = 1 quart

2. So you divide it:

9.44 / 4 = $2.36

Sam is packing gift boxes with fruit. For each apple, he packs 3 plums, and 5 oranges. If he puts three apples in a box, how many plums and oranges will Sam put in the box?

Answers

Answer:

9 plums and 15 oranges

Step-by-step explanation:

3+3+3 = 9 plums

5+5+5= 15 oranges

1+1+1= 3 apples

Yannick bought a bicycle. He paid $194.25, including tax. If the sales tax rate is 5%, how much did Yannick pay for tax?

Answers

Answer:

$9.71 or $203.96

Step-by-step explanation:

5% of $194.25 is $9.71

if you wanted the overall cost that would be $203.96.

Answer:

$11.00 in sales tax

Explaination:

To find the sales tax from total bill, you would divide the total amount by "1 + the sales tax rate" (i.e., If the sales tax is 5%, divide the total amount by 1.05."

Soooo....

194.25 / 1.05 = 183.25**

** Now take that total and subtract it from the full total amount of 194.25.

194.25 - 183.25 = $11.00**

** This total is the amount of sales tax charged.**

help me please i need so much help

Answers

Answer:

x=11

y=4

Step-by-step explanation:

To solve for x, the polygon is symmetrical (because it is regular). So x-3 = 8

x= 11

Similar means the sides are proportional (will be in a ratio)

Big polygon ~ small polygon

16 ~4

8~y/2

We can use these to solve for y.

$\frac{16}{4} =\frac{8}{y-2}$

Cross multiply: 16y-32 = 32

y=4

The answer is pretty much X=11 y=4

I NEED HELP RIGHT NOW!!!! What is the product of 5 and b is greater than 15. (I'm not smart, don't judge) :o

Answers

5+b>15 if you need the expression here it is

V to the power of 2 = 47

(I'M IN CLASS HELP THERES 6 MINUTES LEFT)

Answers

Answer:

Well even though you dont need it now the answer is v = 42 squared

Step-by-step explanation:

I used g00g1e like a normal person would

V^2 = 47

In order to isolate V, we must square root each side.

V^2√2 = 47√2

V = 6.855654600401044 or 6.9 rounded

Hope this helped!

I got 240 so I just need to double-check that. I also need to explain why it's 240 mins? Maybe an expression? Help

Answers

Let’s find the slope of this equation

Slope formula:

(y2-y1/x2-x1)

Plug things in

(-3000-0/20-0)

(-3000/20)

Condense the fraction

Slope = -150 or lowering 150 feet per minute.

Let’s get point slope form, add in some points.

Point slope form:

y - y1 = -150(x - x1)

Plug things in

y - (-3000) = -150(x - 20)

y + 3000 = -150x + 3000

Subtract 3009

y = -150x

Plug in -36000 for y

(-36000) = -150x

Divide by -150

x = 240

You are correct, it took 240 minutes.

WRONG ANSWERS WILL BE REPORTED- PLS GIVE EXPLANATION WTIH ANSWER
8TH GRADE MATH

Answers

2.85
⋅
10
6
30000
2.85
⋅
10
6
30000
Convert the fraction to a decimal by dividing the numerator by the denominator.
95
95
Move the decimal so there is one non-zero digit to the left of the decimal point. The number of decimal places you move will be the exponent on the
10
10
. If the decimal is being moved to the right, the exponent will be negative. If the decimal is being moved to the left, the exponent will be positive.
9.5
×
10
1

Answer:

9.5×10¹

Step-by-step explanation:

You want the quotient of 2.85×10⁶ and 30,000 written in scientific notation.

Division

It is convenient to adjust the exponents of the operands so the coefficient of the quotient has a value between 1 and 10.

$\dfrac{2.85\times10^6}{30,\!000}=\dfrac{2.85\times10^6}{0.3\times10^5}=9.5\times10^{6-5}=\boxed{9.5\times10^1}$

Additional comment

Your calculator can format the quotient in scientific notation for you.

<95141404393>

Multiply the pairs of numbers and match them with their products. Tiles (-5)(4.2) (-7)(-3) (4) (5) (2.5)(-9) Pairs 22.5 21 -22.5 -21 111

Answers

Here are the pairs matched with their products:

- (-5)(4.2) matches with -21

- (-7)(-3) matches with 21

- (2.5)(-9) matches with -22.5

Pairs (4) and (5) do not have corresponding products in the given options.

The products of the given pairs of numbers are:

(-5)(4.2) = -21

(-7)(-3) = 21

(4)(5) = 20

(2.5)(-9) = -22.5

So, the pairs of numbers and their products are as follows:

(-5)(4.2) = -21 matches with -21.

(-7)(-3) = 21 matches with 21.

(4)(5) = 20 matches with 20.

(2.5)(-9) = -22.5 matches with -22.5.

I hope this helps!

please write a function for the points (1/3,0) (-2 3/4,0) and (0,-5) and explain the steps.
thank you!

Answers

The function for the points are y = -15x - 5

How to determine the function

From the information given, we have that;

The points are;

(1/3,0) (-2 3/4,0) and (0,-5)

Using the point-slope form of a linear equation, we have;

y - y₁ = m(x - x₁)

Such that;

m is the slope of the liney - y₁ and (x - x₁) are the points

Using (1/3, 0) and (0, -5), we have that the slope is;

m = (0 - (-5))/0 -1/3)

expand the bracket

= 5 / (-1/3)

= -15

Now, take any of the given points and substitute the values

Using (1/3, 0), we get;

y - 0 = -15(x - 1/3).

y = -15x - 5.

Learn more about functions at: https://brainly.com/question/25638609

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The function for the points solved by (1/3,0) (-2 3/4,0) and (0,-5) solved by point slope form is $a=-15b-5$

We have given the points:

(1/3,0) (-2 3/4,0) and (0,-5)

Using the formula of linear equation

$a-$$a_{1}$$=x[b-b_{1}]$

Where we will consider (1/3,0) = $a-a_{1}$ and (0,-5) = $b-b_{1}$

that is 1/3 = $a$, 0 = $a_{1}$ and

0 = $b$, -5 = $b_{1}$

$x$ refers to the slope of line (take any variable)

Now for finding the value of $x$,

$x=a-a_{1}/b-b_{1}$

inserting the values,

$x=[0-[-5]]/[0-1/3]\\x= -15$

Substitute the value of $x$ in the equation

$a-0=-15[b-1/3]$

By simplifying the equation, we get

$a=-15b-5$

To know more about functions and points:

https://brainly.com/question/30721594

Devon had his two friends over for pizza. Devon ate 1/4 of the pizza. One of his friends ate 3/8 of the pizza and the other friend ate 1/8 of the pizza. How much of the pizza is left? I need help with this question

Answers

Answer:2/8

Step-by-step explanation:Well if there is 8/8 slices of pizza to start first your gonna add 3/8 and 1/8 which is 4/8 and now you convert 1/4 to 8ths which would be 2/8 basically you multiply 1x2=2 and 4x2=8 and that make 2/8 now 4/8 plus 2/8 equals 6/8 meaning 2/8 pizza is left.

Fraction of the pizza is left is 1/4

Given that;

Devon ate 1/4 of the pizza

Friends ate 3/8 of the pizza

Other friend ate 1/8 of the pizza

Find:

Fraction of the pizza is left

Computation:

Fraction of the pizza is left = 1 - 1/4 - 3/8 - 1/8

Fraction of the pizza is left = [8 - 2 -3 -1 ] / 8

Fraction of the pizza is left = [2] / 8

Fraction of the pizza is left = 1/4

Learn more:

https://brainly.com/question/14748058?referrer=searchResults

Can somebody please help I don't understand how to do this

Answers

Answer:

hbsbipynoibnrioudjtoudjtuodjoudk

Step-by-step explanation:

linylnutdbitdiltcicyrkdvutodubtuodjtohtsuodhuthuodtjutodhodutohutdhusotohdtidgidgtidgtigdtuhothuodtohudtuodthhoudthoudtuohtd

Referring to the figure, the shaded region reprsents the product
of what two fractions?
a. 3/4 × 3/4 c. 4/3 × 4/4
b. 3/4 × 4/4 d. 3/3 × 2/3

Referring to the figure, the shaded region reprsents the product
of what two fractions?
a. 3/4 × 3/4 c. 4/3 × 4/4
b. 3/4 × 4/4 d. 3/3 × 2/3

$Referring to the figure, the shaded region reprsents the productof what two fractions? a. 3/4 3/4 c.$

Answers

Answer:

Step-by-step explanation:

...

A is the answer trust

if i was 39 how old was i 28 years ago?

Answers

Answer:

It depends on how old are you today which depends on how long ago was that "was 39"

Step-by-step explanation:

Answer:

Step-by-step explanation:

You will be 69 years old

Compare the pair of numbers. Use <, =, or >.
33
40
333
4
OOO
3/4
434
A
V 11
33
40
33
40
33
40

Answers

Answer:

3/4 < 33/40

Hope it helped

That answer is right.

chrick qwuestshon
what if you wanted to go to the grocery but i said no
What woud you do?
1- ok
2- s
3- go to your house
4- play with toys
5- play with your toys
6- watch TV
7- h
8- z

Answers

1- ok and then 3- go to my house

... i need help again....

Answers

I hope you can read it for some reason it didn’t let me add more then one photo it’s been a while since I have done this math hope this helps ^^

Sam has a deck that is shaped like a triangle with a base of 18 feet and a height of 7 feet. He plans to build a 2:5 scaled version of the deck next to his horse's water trough.

Part A: What are the dimensions of the new deck, in feet? Show every step of your work. (4 points)

Part B: What is the area of the original deck and the new deck, in square feet? Show every step of your work. (4 points)

Part C: Compare the ratio of the areas to the scale factor. Show every step of your work. (4 points)
PLEASE HELP ASAP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answers

Answer:

Step-by-step explanation:

18-2.5+7 there s your helllppppppppppp

Part A: The original triangle has a base of 18 feet and a height of 7 feet. To create the 2:5 scaled version of the deck, we can simply multiply the base and height of the original triangle by the scale factor of 2/5.

New base = 18 x 2/5 = 7.2 feet
New height = 7 x 2/5 = 2.8 feet

Therefore, the dimensions of the new deck are 7.2 feet for the base and 2.8 feet for the height.

Part B: To find the area of the original deck, we can use the formula for the area of a triangle, which is:

Area = (1/2) x base x height

Area = (1/2) x 18 x 7 = 63 square feet

To find the area of the new deck, we can use the same formula and plug in the new dimensions:

Area = (1/2) x 7.2 x 2.8 = 11.88 square feet

Therefore, the area of the original deck is 63 square feet and the area of the new deck is 11.88 square feet.

Part C: The ratio of the areas is:

63/11.88 = 5.303

The scale factor is:

2/5 = 0.4

To compare the ratio of the areas to the scale factor, we can divide the ratio of the areas by the scale factor:

5.303/0.4 = 13.2575

Therefore, the ratio of the areas is 13.2575 times the scale factor.

I just realized how bad at math I am pls help kjshdkjh

Answers

1) -5-6 = -11
2) 35 -(-8) is the same as 35+8=43
3) since they have the same denominators you can do 2-3 = -1 and then add the denominator after, it equals -1/5
4) -3 1/8

Answer:

A. -11

B. 43

C. -1/5

D. -3 2/8

Step-by-step explanation:

Have a good day.

Brandon's car used 15 gallons to travel 435 miles. At what rate does the car use gas,
miles per gallon?

Answers

Answer:

29 miles per gallon

Step-by-step explanation:

Take the miles and divide by the gallons

435/15

29 miles per gallon

ANSWER: 29 miles per gallon!

Please help and I will give brainliest if CORRECT

Answers

Answer:

It might be a

Step-by-step explanation:

13.5 x 3 = 40.50, and has i multiplied the rest it gave me higher numbers but it was close to the amount of total money

given a spare with a diameter of 8.6 cm, find its volume to the nearest whole number. a. 2663m b. 187 cm c. 333 cm d. 54 cm

Answers

It's about C. 333cm using the equation $V=\frac{4}{3}\pi r^3$

The answer is C.333cm2

heeeeeeeeeeeeeeeeelp me

Answers

It’s 20ft I believe . I’m not sure

It should be 20, I’m not the greatest at math so don’t take my work for it

If there are 27 lollipops and 54 candy bars for a gift bag, fill out all of the possible ratios of lollipops to candy bars that could be made.

Answers

the ratio is 1 : 2. hope this helps

Answer:

1:2

Step-by-step explanation: 54 divided by 27 is 2 so 1 lollipop is 2 candy bars!

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