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Ostrovityanka [42]
2 years ago
14

A bookstore is having a sale in which you can get 4 notebooks for $7.00 and 10 folders for $2.50. how much will it cost Rico to

but 5 notebooks and 6 folders
Mathematics
1 answer:
katrin2010 [14]2 years ago
5 0
Are you still in the quiz
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I just stuck. Someone explain.
KatRina [158]

If there are parentheses you add the exponent on the outside to the exponents inside that belong to a variable.

For the three you would just cube it regularly, but for the x you would add the 3 to the 2 that is already on the x

6 0
3 years ago
Solve the equation<br>6j + 27 = j + 57​
faltersainse [42]

Answer:

6

Step-by-step explanation:

6j + 27 = j + 57

6j - j = 57 - 27

5j = 30

j = 30 / 5

j = 6

7 0
3 years ago
Read 2 more answers
I need to know the area of the walkway and how you got the answer
lakkis [162]

The problem statement asks for the area of the pool. We will assume that is an error, and that you want to fill in the table with the area of the walkway.

Consider a walkway of width w. The outside dimension of the walkway will be 2w plus the dimension of the pool (since there is a walk on either side). Thus, the outside dimensions of the pool and walkway are 9+2w and 12+2w yards.

The area of the pool and walkway will be

... total area = pool area + walkway = (9 + 2w)(12 + 2w) = 9·12 + 2w(9+12) +4w²

... total area = (9·12) + walkway = 9·12 + 42w + 4w²

Subtracting the pool area gives the area of the walkway as

... walkway = 42w + 4w² = 2w(2w+21)

Using this formula, we can fill in the table

\begin{array}{cc}\text{width}&\text{area $(yd^2)$}\\0.5&22\\1.0&46\\1.5&72\\2.0&100\\N&2N(2N+21)\end{array}

7 0
3 years ago
The shape has no right angles all the sides are congruent the total of its angle is less than 360°
amm1812

Answer:

equilateral triangle

5 0
3 years ago
PLEASE HELP ASAP I WILL MARK BRAINLIEST!!
Mariulka [41]
D


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4 0
3 years ago
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