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Svetllana [295]
2 years ago
10

THIS IS FOR MY TEST PLEASE HELP

Mathematics
1 answer:
AVprozaik [17]2 years ago
7 0
2(3x+4y) = 2(24)
6x+8y = 48
Add both the equations
6x + 8y = 48
+ x - 8y = -20
—————————
7x = 28
x = 28/7
x = 4

Plug in this value in the second equation

(4) - 8y = -20
-8y = -24
y = -24/-8
y = 3

Therefore:
x = 4
y = 3
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Brilliant_brown [7]
Short answer: 375 grams

Remark
You only need to set up a direct proportion

Givens
flour for 12 cakes = 150 grams
Number of cakes initially = 12
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Proportion
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Sub and solve
150 grams / 12 cakes = x / 30 cakes  Cross multiply
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375 grams for 30 cakes. <<<<< Answer
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3 years ago
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3 0
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Answer:

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