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3 years ago

10

You are saving money to buy a skateboard. You begin with $45 and you save $3 each week. The expression 45 + 3w gives the amount

of money you save after w weeks. How much will you have after 8 weeks?

2 answers:

Olin [163]3 years ago

7 0

The answer is this question is $89 :)

Vinvika [58]3 years ago

5 0

Answer:

$89

Step-by-step explanation:

45 + 3w

45 + 3•8

45 + 24

$89

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Need help on this one too

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Step-by-step explanation:

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Step-by-step explanation:

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Find the equation of the inverse.<img src="https://tex.z-dn.net/?f=y%20%3D%20%20%7B2%7D%5E%7Bx%20%2B%205%7D%20%20-%206" id="TexF

Contact [7]

Find the equation of the inverse.

$y = {2}^{x + 5} - 6$

we have

$y=\mleft\{2\mright\}^{\mleft\{x+5\mright\}}-6$

step 1

Exchange the variables

x for y and y for x

$x=\{2\}^{\{y+5\}}-6$

step 2

Isolate the variable y

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apply log both sides

$\begin{gathered} \log (x+6)=(y+5)\cdot\log (2) \\ y+5=\frac{\log (x+6)}{\log (2)} \\ \\ y=\frac{\log(x+6)}{\log(2)}-5 \end{gathered}$

step 3

Let

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therefore

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