i have an exam tomorrow i want the answer so i can check if my answers are right

Question

-Find the unit rate for number of parts manufactured per hour if 1363 parts are made in 5 hours. Round to the nearest integer.

-Write an expression for the phrase: the quotient of 2 times a number and 9.

The total cost to rent a kayak is $10 times the number of hours the boat is used. Write an equation to model this situation if c = total cost and h = number of hours.

The length of a rectangle is 5 cm less than twice the width. The perimeter of the rectangle is 26 cm. What are the dimensions of the rectangle?

Write an equation that represents a line perpendicular to y =1/6x-2

Answer 1

Hello, Karim,

I agree with the comment made by Mark M. Please let us know what you have done so far so that we know where to provide the most clear response. I'll answer briefly:

-Find the unit rate for number of parts manufactured per hour if 1363 parts are made in 5 hours. Round to the nearest integer.

Divide the parts made by the hours required and round to the nearest integet. Include the units, parts/hr.

-Write an expression for the phrase: the quotient of 2 times a number and 9.

I think it can be written as 2x/9

The total cost to rent a kayak is $10 times the number of hours the boat is used. Write an equation to model this situation if c = total cost and h = number of hours.

c = 10h

The length of a rectangle is 5 cm less than twice the width. The perimeter of the rectangle is 26 cm. What are the dimensions of the rectangle?

We know that L = 2W-5. The perimeter is made up of 2 lengths and 2 widths. Just add them together and simplify the equation. E.g. 2(2W-5) + 2W = Perimeter Solve for W and then use that to find the length.

Write an equation that represents a line perpendicular to y =1/6x-2

Perpendicular lines have a slope that is the negative inverse of the original line. Tkake the inverse of 16 and make it negative.

Bob