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elena55 [62]
3 years ago
5

Question:

Mathematics
2 answers:
lina2011 [118]3 years ago
8 0

Answer:

$21

Step-by-step explanation:

starting money: 51

cost of each book = 3

total books bought = 10

3*10 = $30 spent on books

51-30 = $21 left

dmitriy555 [2]3 years ago
7 0

Answer:

Ayana have left 21$

Step-by-step explanation:

10x3$=30$

Then,30$-51$=21$

Hope it helps

..

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If f(x)=5x^3 and g(x)=x+1, find (f•g)(x)
alukav5142 [94]

Hello from MrBillDoesMath!

Answer:

5 x^3 + 15 x^2 + 15 x + 5 , none of the provided choices

Discussion:

f(x) = 5 x^3

g(x) = x+ 1  

=>

(f•g)(x) =

f(g(x)) =

f(x+1) =

5 * (x+1)^3 =

5 x^3 + 15 x^2 + 15 x + 5

which is none of the provided answers.

Thank you,

MrB

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Nikitich [7]

You are given that all three sides are equal. You also know that all three angles are also equal. Therefore since all three angles are equal and every triangle has 180 degrees, each angle is 180/3 = 60

So

7x - 3 = 60                     Add three to both sides

7x - 3 + 3 = 60 + 3        Combine

7x = 63                          Divide by 7

7x/7 = 63/7

x = 9                              And that's your answer.

3 0
3 years ago
Mike owns two hardware stores. The scatter plots show the number of items sold at a specific price for each store for one week.
alexandr1967 [171]
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devlian [24]
The paper for each of them
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3 years ago
[IMAGE ATTACHED]<br> PLEASE HELP!!
Kay [80]
Answer: y=24

Explanation:
start by adding the two expressions
7y+12=180
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Plug it in/Check your work:
3(24)+5=77
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4 0
3 years ago
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