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OleMash [197]
3 years ago
12

Solve the formula A=1/2h(a+b) for a

Mathematics
1 answer:
Naya [18.7K]3 years ago
7 0

\bf A=\cfrac{1}{2}h(a+b)\implies A=\cfrac{h(a+b)}{2}\implies 2A=h(a+b) \\\\\\ \cfrac{2A}{h}=a+b\implies \cfrac{2A}{h}-b=a

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Answer:

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The cost of 4 belts and 5 ties is $247. Each time costs 3 times as much as a belt. What us the total cost of 1 belt and 1 tie
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Answer:

The total cost of 1 belt and 1 tie is $13 and $39 respectively.

Step-by-step explanation:

Given that,

The cost of 4 belts and 5 ties is $247.

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Let the cost of a belt is x and that of a tie is y.

ATQ,

4x + 5y = 247 ...(1)

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Put the value of y from equation (2) in equation (1)

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