Exam 2: B: Review and Applications of Algebra

David's portfolio consists of bonds and equity. The bond market rose by 2.5%, while the equity market dropped by 10.5%. David's portfolio increased by 1.25%. What portion of bonds and equity did he have in his portfolio?

Solve: 3.1t + 145 = 10 + 7.6t

How much is 600 increased by 44%?

The share value of Rip-off Technologies has dropped this year by 85%, to a new low of $7.50 per share. How much money has been lost per share?

During a one-day special, a grocery store sells cucumbers at 98 cents each or four for the price of three. At the end of the day, the store's computer reports that revenue from the sale of 541 cucumbers was $418.46. How many cucumbers were sold on the four-for-three promotion?

Solve for the unknown variable:

Solve for x: = 2x - 10

Solve for the unknown variable:

Susan is paid a 15% commission of her sales. If she earns a commission of $3800, what was the amount of her sales?

If the euro is worth 57% more than the Canadian dollar, how much less (in percentage terms) is the Canadian dollar worth than the euro?

Solve for x: 2/3 ( x + 3) = -1/2 (6 x + 20) + 15

Calculate the final result to two decimal places, where f = $8.25

Solve for x and y: X + y = 40 -x + y = -20

The net amount after a 34% reduction on $180 is $122.50.

The Euro is 8% greater than the US Dollar. By what percentage is the US Dollar less than the Euro?

Tina drove from Calgary to Vancouver, a distance of 1,000 km, in 12.3 hours. She drove at 100 km/h on the "open road," but slowed to 50 km/h on urban and curving roads. What distance did she drive at each speed? (Hint: Travelling time at a particular speed is Distance/Speed)

Anders has $35,000 to invest. He invested part at 5.5% and part at 7%. His investments earned $2,195 total interest for the year. How much did Anders invest at each rate?

What was the percent change in unit price when a box of tissues dropped from 200 to 150 tissues per box? (with no change in the price per box)?

Solve the following pair of equations. Verify your solution. 4a - 3b = -3 5a - b = 10

What is the percent change in unit price of a bag of cookies if the number of cookies per box is decreased by 15% (with no change in the price per bag)?