2 years ago

The value of y varies directly with x. If x = 3, then y = 21. What is the value of x when y = 105?

Mathematics

1 answer:

Bumek [7]2 years ago

3 0

Answer:

Step-by-step explanation:

$y \alpha x \\ \frac{y}{x} = k \\ \frac{21}{3} = \frac{105}{x} \\ x = 15$

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Mikes plumbing charges 68 for coming to your house and 17 per hour for labor if I paid him 357, how many hours, h, was mike at m

Roman55 [17]

Answer:

b. $68 + 17h = 357$

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Step-by-step explanation:

Charges for coming to my house = $68 (this will be the constant of the equation)

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hours = h

Total amount paid to Mike = 357

The equation that represents this situation can be expressed as:

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