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2 years ago

Three numbers are in the ratio 2 : 3 : 4. The sum of their cubes is 33957. Find the largest number

1 answer:

lina2011 [118]2 years ago

4 0

We take each number as x = 2x 3x 4x
(2x)³+(3x)³+(4x)³=33957
8x³+27x³+64x³=33957
99x³=33957
x³=33957÷99
=∛343
x=7
2x=2×7=14
3x=3×7=21
4x=4×7=28
=the three numbers are 14,21,28

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Step-by-step explanation:

see the attached figure to better understand the problem

Let

a ----> the cost of one tuna sandwich

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we have

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we know that

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Subtract 6.50 both sides

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$4.00x \leq 1.50$

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therefore

The maximum number of pounds of potato salad that Charlie can buy is 0.375

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