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makvit [3.9K]
3 years ago
12

The variable z is directly proportional to x , and inversely proportional to y . When x is 5 and y is 16, z has the value 2.1875

. What is the value of z when x= 8, and y= 25

Mathematics
1 answer:
aksik [14]3 years ago
3 0
Z=24/25
You have to look for the coefficient so you have to work backwards to find it. Then you plug in the numbers to solve for it.

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(07.09) Jonah is purchasing a car that is on sale for 15% off. He knows the function that represents the sale price of his car i
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Answer:

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Step-by-step explanation:

Given: Jonah is purchasing a car that is on sale for 15% off. He knows the function that represents the sale price of his car is , where p is the original price of the car.

He also knows he has to pay 9% sale's tax on the car. The price of the car with tax is , where c is the sale price of the car.

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Answer:

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A company find that 4 1/4 % of the tyres are defective. The company made 28,000 tyres. How many tyres were defective?
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where i is the starting point, n is the number of terms, a is the first term and r is the common ratio.

The finite geometric series converges to the expression in the right side of the equation. Therefore, you don't need to calculate all the terms. You can use the expression directly.

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