show your work for each of the following steps Set up a vari

show your work for each of the following steps:

Set up a variable dictionary.

Set up an equation.

Solve the equation.

Answer the question.

Look back.

12) There are 92 milligrams of cholesterol in a 3-ounce serving of fish. How much cholesterol is in 11 ounces of fish? Round your answer to the nearest tenth.

13) A 11% chloric acid solution contains 27 milliliters of chloric acid. How many total milliliters of solution are present? Round your answer to the nearest milliliter.

14) The enrollment at a local college increased by 2.6% over last year’s enrollment of 9752. Find the increase in enrollment and the current enrollment. Round your answers to the nearest whole number.

15)      Chris borrows money at 4% simple interest per year from a local bank. At the end of 5 months, he owes $105 in interest. Use the simple interest formula to find the principal amount borrowed.

Solution

12) There are 92 milligrams of cholesterol in a 3-ounce serving of fish. How much cholesterol is in 11 ounces of fish? Round your answer to the nearest tenth

3 ounces of fish has --92 milligrams of chloesterol

1 ounce would have ---(92/3)

So, 11 ounces would have ---(92/3)*11 = 337.33 milligrams

13) A 11% chloric acid solution contains 27 milliliters of chloric acid. How many total milliliters of solution are present? Round your answer to the nearest milliliter.

Let x be the total millilitres solution present

So, 11% of x = 27 millilitre

0.11x = 27

x = 27/0.11 = 245.45 millilitres

14) The enrollment at a local college increased by 2.6% over last year’s enrollment of 9752. Find the increase in enrollment and the current enrollment. Round your answers to the nearest whole number.

enrollment increased by 2.6% over last year’s enrollment of 9752

So, increase = (2.6/100)*9752 = (2.6*9752)/100 = 253.552 = 254