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Nataliya [291]
3 years ago
11

A corner store sells two kinds of baked goods: cakes and pies. A cake costs $5 and a pie costs $7. In one day, the store sold 15

baked goods for a total of $91. How many cakes did they sell?
Write a system of equations representing the problem and solve.
Mathematics
1 answer:
riadik2000 [5.3K]3 years ago
6 0
C+p=15
5c+7p=91

multiply 5 to 1st equation and subtract it from 2nd
multiply 5 to 1st equation to get 5c+5p=75 now subtract this from 2nd equation

thats 2p=16 so
p=8
now we find c from

c+p=15
c=7
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katrin2010 [14]

Answer:

0.300   30%

Step-by-step explanation:

Area circle      4^*pi =50.272

Area pentagon =area of the sum of 5 triangles

area of 1 triangle

(b*h)/2=

4.7* 3.2 divided into 2  =7.5

7.5*5 =37.5

subtract the area of the pentagon from the area of the circle:

50.272-37.5= 12.772

Divide the area remaining of the circle into the area of the whole circle to kow the probability:

12.772/50.272=0.254  (rounded to 0.300)

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Answer:

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Step-by-step explanation:

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$12.50 divided by 5 = $2.50

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Step-by-step explanation:

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Answer:

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