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marysya [2.9K]
2 years ago
6

you want to save up enough money to buy a new pair of shoes that cost $100. you decide that you will put $7 in your piggy bank e

very week from youre allowance to buy the shoes. if you currently have $45 in your bank account, how long will it take you to save enough money? complete a table.​
Mathematics
1 answer:
nexus9112 [7]2 years ago
5 0
Start - 45
week 1 - 52
week 2 - 59
week 3 - 66
week 4 - 73
week 5 - 80
week 6 - 87
week 7 - 94
week 8 - 101
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Solve the system of equations. y= x + 17, y= 3x+1
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Answer:

x=8, y=25. As a point it's (8,25)

Step-by-step explanation:

here is the system:

y=x+17

y=3x+1

notice how both of the equations equal y. Therefore, we can substitute one expression as y in the other expression. (It'll equal y=y, which is a true statement)

so it'll be:

3x+1=x+17

subtract 1 from both sides

3x=x+16

subtract x from both sides

2x=16

divide by 2

x=8

now, substitute 8 as x into one of the equations and solve for y

let's take the first one for example

y=8+17

y=25

so the answer is x=8, y=25. As a point it's (8,25)

Hope this helps!

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