what is the y-value in the solution to the system of linear equations?
4x+5y= -12
-2x+3y= -18
Answers
Answer:
4x+5y= -12
subtract 4x from both sides
5y = -4x - 12
divide by 5
y = -4/5 x - 12/5
-2x+3y= -18
subtract -2x
3y= -2x - 18
divide by 3
y= -2/3x -6
Related Questions
In a survey of a community, 60% of people liked summer season, 70% liked winter season and 15% liked none of the seasons.
a. Illustrate the given information in a venn diagram.
b. Find the percentage of the people liked both the seasons.
c. If 180 people liked summer season only, how many liked winter season only?
Please answer me
and pls don't answer anything wrong for getting points only .
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Answers
Answer:
Step-by-step explanation:
n(U)=100%
n(S)=70%
n(W)=15%
n(S union w compliment)=20%
n(s intersection W)=?
n(u)=n(s)+ n(w)+ n(s union w compliment)- n(s intersection w)
or 100%=70% +15%+ 20% - n( s intersection w)
or 100%= 95%- n(s intersection w)
or 100%-95%=n(s intersection w)
or 5%= n( s intersection w)
now;
n(only w)=n(w)- n(s intersection w)
=15%- 5%
=10%
10%of people only like winter season.
i think the question is to find people who only like winter season.
if not then ans is 15% according to question.
a) The illustration of the given information in a Venn diagram is attached.
b) The percentage of people who liked both seasons is 45%.
c) If 180 people liked the summer season only, proportionately, the number of people who liked the winter season only is 300.
How the Venn diagram is illustrated:The Venn diagram, which shows similarities and contrasts, can be illustrated based on the given percentages.
Percentages are one of the ways to depict proportions, which are the equation of two ratios.
The percentage of survey people who liked the summer season = 60%
The percentage of survey people who liked the winter season = 70%
The percentage of survey people who liked none of the seasons = 15%
The percentage of participants who liked one of the seasons = 85% (100% - 15%)
The total percentage of survey people who liked either summer or winter = 130% (60% + 70%)
b) The percentage of survey people who liked both seasons = 45% (130% - 85%)
The percentage that liked only summer = 15% (60% - 45%)
The percentage that liked only winter = 25% (70% - 45%)
c) 180 people liked summer only
180 = 15%
Proportionately, if 180 = 15% of the people, the total number of people = 1,200 (180/15%)
The number of people who liked winter season only = 300 (1,200 x 25%)
Learn more about Venn Diagram at https://brainly.com/question/28060706.
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Nakeisha has a coin collection. She keeps 7 of the coins in her box, which is 20% of the collection. How many total coins are in her collection?
Answers
Answer: 35
Step-by-step explanation:
20%=7
100%=35
Answer: The answer is 35
Step-by-step explanation:
Find an equation with an x intercept of (-1, 0)
Answers
y=x+1 :)
step by step explanation:
Ghjbhgb huffrvcffcc. Hfvhjgvbff BBC fhc
Answers
Answer: t=11
Step-by-step explanation:
Step 1: Subtract 8 from both sides.
Step 2: Divide both sides by 5.
HFWFSVBSJBSSG&*GBW
what is the initial value of the equation y-3=-7x ?
Answers
The value is 21 Because three represents those to variables which both equal to 21.
Use the best-fit line below to predict the value of y when x = 7
Answers
Answer:
the answer is 6 because when x=7 on the line it is also equal to 6 on the y axis
Which inequality is true?
A. |5| < |–3|
B. |2| < |–4|
C. |–5| < |–3|
D. |–4| < |–2|
Answers
Answer:B
Step-by-step explanation:
yes
Answer: D and C are true
♡PLEASE HELP ASAP! and explain how you did it... Tysm!♡
Answers
hope this helps you c:
The volume of a cylinder is 576x cubic inches. The radius of the circular base is 4 inches. What is the height of the
cylinder?
Recall the formula V - xrn.
18 inches
24 inches
36 inches
72 inches
Answers
The answer is 24 inches
Distribute the negative number and simplify.
-7(2 - 3x)
Answers
-14+21x
Hope this helps
Solve the following equation algebraically. Show your work.
Answers
explanation: multiply both sides by 3 and get 18=x+2 then move the variable and get -x=2-18 and then calculate and you get -x=-16 and then you change the signs and get x=16
Explanation
16+2=18 18dividedby3=6
Brain and calculator maybe even calculator soup
I need help with this question, I'm not very good at math and all help is appreciated!
Answers
Answer:
A
Step-by-step explanation:
We can solve for H by isolating it on one side of the equation, as follows:
J/H - I/H = G
Taking H as the common denominator:
(J - I)/H = G
Multiplying both sides by H:
J - I = GH
Adding I to both sides:
J = GH + I
Dividing both sides by G:
H = (J - I)/G
So the answer is
(A)
H = (J - I)/G.
Answer: A
Step-by-step explanation:
\(\frac{J}{H} = G + \frac{I}{H}\) >Since you are solving for H bring I/H to the other side
by subtracting I/H from both sides
\(\frac{J}{H}- \frac{I}{H} = G\) >There is a common denominator so you can
combine the fractions
\(\frac{J-I}{H} = G\) >Multiply both sides by H or cross multiply whichever
way your mind things about how to get H on top
\(J-I = G(H)\) >Divide both sides by G
\(\frac{J-I}{G} = H\) >Answer is A
Which list orders the numbers from least to greatest?
Negative 2.4, negative 1.5, negative 2 and one-fourth, negative 3, negative 1 and one-eighth
A number line going from negative 4 to positive 4.
Negative 1 and one-eighth, negative 1.5, negative 2 and one-fourth, negative 2.4, negative 3
Negative 3, negative 2.4, negative 2 and one-fourth, negative 1.5, negative 1 and one-eighth
Negative 3, negative 2 and one-fourth, negative 2.4, negative 1 and one-eighth, negative 1.5
Negative 1.5, negative 1 and one-eighth, negative 2.4, negative 2 and one-fourth, negative 3
Answers
Negative 3, negative 2.4, negative 1.5, negative 2 and one-fourth, negative 1 and one-eighth
Hope my answer helps you✌️
Which pair of points forms a vertical line segment that is 4 units long? A. (–3, 5) and (–7, 5) B. (3, –8) and (3, –4) C. (2, 1) and (2, 3) D. (2, 4) and (–2, 4)
Answers
Answer: (-7,5) and (-3,5) :) there for answer is A
Step-by-step explanation:
Answer:
a
Step-by-step explanation:
A comet travelling through space at a rate of 75 miles per hour has just flown into a huge amount of space dust. This dust decreases the speed of the comet by 15 miles every hour, until it completely stops moving. Which are the domain and range of the linear function that represents this relationship?
Answers
Answer:
Linear function: y = -15x + 75
Domain: x ≤ 5
Range: y ≥ 0
Please tell me if there are any mistakes in my answer and I will correct them.
Step-by-step explanation:
The linear function is y = -15x + 75, written in y=mx+b form. X is the amount of hours. Since the speed is decreasing, we will use -15. Since we started at 75 miles per hour, our b value will be 75.
DomainThe domain is all the possible values for x.
Since the comet slows down by 15 miles every hour until it stops moving, we can solve for x by putting in 0 for y.
0 = -15x + 75
15x = 75
x = 5
Therefore, the domain is x ≤ 5.
RangeThe range is the set of all possible values of y. In this case, the range can be anything but 0 in order for the equation to make sense.
So, the range is y ≥ 0.
Answer:
domain is 0,5
Step-by-step explanation:
after 5 hours, it stops moving
Need help with this.
Answers
Y intercept 3
X Intercept 4
Sorry I do t know the others
Haven’t gone over that
Hope this helps
ANSWER THIS QUESTION FOR BRAINLEST AND 10 POINTS
Answers
The answer to the question is (0,5)
Use grid paper to find the median of the data. Then find the median of the lower half and the median of the upper half of the data. 5, 8, 10, 1, 7, 6, 15, 8, 6
Answers
Answer:
points
Step-by-step explanation:srry
Answer:
3, 7, 8, 5, 12, 14, 21, 13, 18
Step-by-step explanation:
Find the mean of the integers: 17, -25, 3, -29, -15, 7
Answers
Answer: -7
Step-by-step explanation: To find the mean, here is the equation =
Divide the sum of all values in a data set ÷ the number of values = mean (average)
Step 1 :
So we do =
17 + -25 + 3 + -29 + -15 + 7 = -42
So the sum of the integers is -42
Step 2 :
We divide the sum by the number of values.
17, -25, 3, -29, -15, 7
1 2 3 4 5 6
So there are 6 values.
We do =
-42 ÷ 6 = -7
So the mean (average) of these integers is -7
Make my answer the brainliest!
For each ride, a taxi service charges an initial fee plus an additional fee based on the number of kilometers of the trip. The graph shows the cost for taxi rides. Select a true statement. The rise is 4 while the run is 2. The selection of answers are:
A: The slope is 2.1. This means that each kilometer costs $2.10.
B: The slope is 5. This means that each kilometer costs $5.
C: The y-intercept is 2.1. This means that the initial fee is $2.10.
D: The y-intercept is 5. This means that the ride lasts 5. kilometers.
Which one is right and why?
Answers
THIS MIGHT NOT BE WHAT YOU ARE LOOKING FOR AND MIGHT NOT BE CORRECT! READ FIRST!
The answer is A. The slope of the line is rise/run = 4/2 = 2.1. This means that each kilometer costs $2.10. The y-intercept is 2.1, which means that the initial fee is $2.10. So the correct statement is: The slope is 2.1. This means that each kilometer costs $2.10.
The other statements are incorrect. The slope is not 5, so each kilometer does not cost $5. The y-intercept is not 5, so the ride does not last 5 kilometers. The y-intercept is the value of the function when the input is 0, which in this case is the initial fee of $2.10.
What is the formula for 'percent of change'?
Answers
How does graphing the solution help you to be sure you have correct solution?
Answers
Answer:
It helps you see the visual move of what you were doing. If you weren't moving anything it would help you see if it is true or false. Say you put a dot on the origin (0,0), then you have to go (x+7,y+3) then moving it on a graph would help show you. So overall it's a visual help to people.
Please answer correctly !!!! Will mark BRAINLIEST !!!!!!!
Answers
Answer:
g(n) = \(\frac{11+5n}{3}\)
Step-by-step explanation:
Given
3m - 5n = 11
Rearrange making m the subject
Add 5n to both sides
3m = 11 + 5n ( divide both sides by 3 )
m = \(\frac{11+5n}{3}\) , thus
m = g(n) = \(\frac{11+5n}{3}\)
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:
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
Elena is buying cups and plates for her party. Cups are sold in packs of 8 and plates are sold in packs of 6. She wants to have the same number of plates and cups.
Find a number of plates and cups that meet her requirement.
Answers
Answer:
24 of each; 3 packs of cups and 4 packs of plates
Step-by-step explanation:
If you want to know the minimum amount of plates and cups she can get, it would be 24.
The factors of 8 are:
8, 16, 24, 32, 40, 48, 56, 64, 72, 80
The factors of 6 are:
6, 12, 18, 24, 30, 36, 42, 48, 54, 60
The least common factor they share is 24.
She can buy 3 packs of cups and 4 packs of plates.
can someone explain how to do circles and circumference
(geometry)
Answers
Answer:
Radius:
radius is always half the length of its diameter. For example, if the diameter is 4 cm, the radius equals 4 cm ÷ 2 = 2 cm.
Diameter:
2 times the radius is the circle's diameter.
Circumference:
The formula is simply this: C = πd. In this equation, "C" represents the circumference of the circle, and "d" represents its diameter. That is to say, you can find the circumference of a circle just by multiplying the diameter by pi.the formula for circumference of a circle is 2 x pi x r(radius).
Step-by-step explanation:
Hoped this helped
Write a real world problem to represent an inequality, write an inequality, and solve the problem. Show your work for full credit.
Answers
Answer:
20,000 + 12,000 + c ≤ 65,000
20,000 + 12,000 + c – 32,000 ≤ 65,000 – 32,000
c ≤ 33,000
Step-by-step explanation:
cab weight + trailer weight + cargo weight ≤ allowable weight
20,000 + 12000 + c ≤ 65000
ILL GIVE BRAINLIEST!! PLEASE EXPLAIN!
I don't understand how an equation will help me get the slope of f(x).
I need an explanation of how an equation(I mean like y = mx + b or something like that) would give me the slope! Please explain how!!
Answers
Answer:
You can see the line
Step-by-step explanation:
I know this isn't a good eplanation, but when you graph rise over run on the graph, you can see the line without even drawing it, then you get the slope, via the line, sorry I can't explain better.
im a little confused on this on can someone help me with this thanks!
Jerri was looking at a map with the following scale indicator.
1 half , , inch , equals 3 , miles
Jerri measured 3 1 over 8inches between two towns on the map. What is the distance in miles between the two towns?
Answers
HELP ANSWER THIS I WILL GIVE TEN POINTS AND THANKS!
REMEMBER TO EXPLAIN STEP-BY STEP! AND GET THE CORRECT ANSWER!
The units and tens digits of one-two digit integer are the tens and units digits of another two- digit integer, respectively. If the product of the two integers is 4930, what is their sum?
Answers
Answer:
(10t + u)(10u + t) = 4,930
100tu + 10t^2 + 10u^2 + tu = 4,930
101tu + 10t^2 + 10u^2 = 4,930
10t^2 + (101u)t + (10u^2 - 4,930) = 0
(101u)^2 - 4(10)(10u^2 - 4,930)
= 10,201u^2 - 400u^2 + 197,200
= 9,801u^2 + 197,200
We see that u = 5 gives 442,225.
√442,225 = 665
(10t + 5)(50 + t) = 4,930
500t + 10t^2 + 250 + 5t = 4,930
10t^2 + 505t - 4,680 = 0
2t^2 + 101t - 936 = 0
t = (-101 + √(101^2 - 4(2)(-936)))/(2×2)
= (-101 + √17,689)/4
= (-101 + 133)/4 = 32/4 = 8
So the numbers are 58 and 85.
58 + 85 = 143