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raketka [301]
3 years ago
15

Which equation can be used to find the value of b if side a measures 8.7 cm? 8.7 + b = 54.6 17.4 + b = 54.6 26.1 + b = 54.6 34.8

+ b = 5
Mathematics
1 answer:
Gnom [1K]3 years ago
5 0
The correct equation is 8.7 + b = 54.6
because it is given that measure of side a is 8.7cm, in all other equations the values of a is different.
from the first equation we can find the value of b, that is
b = 54.6 - 8.7 = 45.9
so, value of b is 45.9cm
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a. Required system of equations is:

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Step-by-step explanation:

Let p be the number of pies and c be the number of cakes.

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c+p = 10\ \ \ Eqn\ 1

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"A cake costs $5 and a pie costs $4"

5c+4p = 46\ \ \ \ Eqn\ 2

Using equation 1,

c=10-p

Putting this value of c in equation 2:

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b. 6 cakes were sold

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3 years ago
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