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Sav [38]
2 years ago
12

Quiah saved $200 every month that she worked. Her savings are recorded in the data table below. What equation would best describ

e Quiah's savings?
y = 200x
y = 200x + 300
y = 200x + 500
y = 200x + 200

Mathematics
2 answers:
Stolb23 [73]2 years ago
7 0
Y=200x+300. pls mark me brainliest. hope you have a great day!! :)
alexira [117]2 years ago
6 0

Answer:

y = 200x + 300

Step-by-step explanation:

First we multiply the amount she saves every month (200) by the amount of months she works. Since we want an equation that we can use to find Quiah's savings depending on how many months she works, the number of months will be a variable (x). So far we have 200x.

Since she only saves 200 a month and she already has 500 after the first month, we know she had some money saved before. This means we need to add that amount of money to 200x. To find how much money that was, we need to think about the graph. The graph shows us what she has after the month has ended, meaning once she already saved the $200. So to find how much money she originally had we should subtract 200 from 500 which will give us 300. This is how much money she originally had.

This leaves our equation looking like this: y = 200x + 300

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The winner of a gymnastics competition scored a total of 22.1 points. She won by 0.676 points.
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im not sure if it is correct but i think its like this

7 0
3 years ago
Use f(x) = 1/2 x and f -1(x) = 2x to solve the problems. f(2) = 1 f−1(1) = 2 f−1(f(2)) = 2 f−1(−2) = f(−4) = f(f−1(−2)) =
vampirchik [111]

Answer:

In this problem, we are given the following functions:

f(x)=\frac{1}{2}x

and its inverse function:

f^{-1}(x)=2x

First of all, we want to calculate f(2). This can be obtained by substituting

x = 2

into f(x). Doing so, we find:

f(2)=\frac{1}{2}\cdot 2 = 1

Then we want to calculate f^{-1}(1). We can do it by substituting

x = 1

into f^{-1}(x). Doing so,

f^{-1}(1)=2\cdot 1 = 2

Then we want to calculate f^{-1}(f(2)), which can be found by calculating f(2) and then using it as input for f^{-1}(x). We know that

f(2) = 1

Therefore,

f^{-1}(f(2))=f^{-1}(1)=2

Then we want to calculate f^{-1}(-2), which can be calculated by plugging

x = -2

into f^{-1}(x). Doing so,

f^{-1}(-2)=2\cdot (-2)=-4

Then we want to calculate f(-4); by substituting

x = 4

into f(x), we find

f(-4)=\frac{1}{2}\cdot (-4)=-2

Finally, we want to find f(f^{-1}(-2))

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7 0
2 years ago
Read 2 more answers
Julio just bought a $267,900 house. he had a 20 year mortgage with a fixed rate of 5.875%. julio’s monthly payments are $1,558.0
boyakko [2]

The percent of the purchase price for Julio’s down payment was C. 18%

<h3>What is Interest Rate?</h3>

This refers to the amount of money that is added to a loan collected by a person, for when he makes repayment.

Hence,

Given that

  • PMT monthly payment 1558.09
  • R interest rate 0.05875
  • K compounded monthly 12 because the payment is monthly
  • N time 20 years
  • Pv present value?

We use the formula Pv=pmt [(1-(1+r/k)^(-kn))÷(r/k)]

Pv= 1,558.09×((1−(1+0.05875÷12)^(−12×20))÷(0.05875÷12))

=219,684.92

Next thing to do is make a subtraction to get the down payment:

267,900−219,684.92=48,215.08

Then the percentage would be:

48,215.08÷267,900= 18% approx.

Read more about interest rates here:

brainly.com/question/25545513

#SPJ4

4 0
1 year ago
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