3 years ago

The variables x and y vary inversely. Use the given values to write an equation relating x and y. Then find y when x=−3.

Mathematics

1 answer:

-BARSIC- [3]3 years ago

6 0

Answer:

xy-3x=40, x=5

x(y-3)=40

y-3=(40/x)

y=(40/x)+3

y=(40/5)+3

y=8+3

y=11

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A right triangle has a height of 27 inches and a base of 30 inches what is the area of the triangle

klasskru [66]

Answer:

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Step-by-step explanation:

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3 years ago

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seraphim [82]

Step-by-step explanation:

d/dx [f(x)]

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3 years ago

The Senior class has 350 students. How much is the total bill if the Student government wants to buy each Senior a T-shirt costi

Scilla [17]

To find the cost of Senior T-shirts needed, 
Multiply (the number of students) by (how much each T-shirt costs).
350 × 7.2 = $2520
To find the cost of the yearbooks needed,
Multiply (the number of students) by (how much each yearbook costs).
350 × 24.75 = $8662.5
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Add up the two sums.
2520 + 8662.5 = $11182.5

SO, the answer is $11182.5