Exam 5: Solving for the Unknown: a How-To Approach for Solving Equations

Runyon Company sells T-shirts ($5)and shorts ($6). If total sales were $1,040 and people bought 4 times as many T-shirts as shorts, what would be the number of T-shirts and shorts sold? A. Number of T-shirts sold. B. Number of shorts sold.

B/5 + 3 = 15; B = 16.

Andy Foll is 6 times as old as Mel Kaas. Andy is 15 years older than Mel. What is Mel's age?

Match the term with its definition. -Variables

20A - 40 = 8A + 160 (answer to nearest hundredth).

A formula is not an equation.

P + 77 = 101; P equals:

What number decreased by 630 equals 1,510?

B + 40 = 90

Mike and Bill sell cars for Jangle's Auto. Over the past year they sold 640 cars. Assuming Mike sells 3 times as many as Bill, how many cars did Mike sell?

More than one unknown in a word problem can be represented in terms of the same variable assigned to the first unknown.

8 (A - 5)= 70

1/4B ? 10 = 7; B = 67.

JCP sold a pair of pants that was reduced by $12.00. The selling price was $48.00. What was the original price?

Ryan Small budgets 1/8 of his weekly salary for food. Ryan's food bill is $80. What is his weekly salary?

Jane weighs 12 pounds less than Shelley. Assuming Jane weighs 120 pounds, find Shelley's weight.

A letter or a symbol that represents one or more numbers is a:

1,080 = B + 30

Solve for the unknown, showing all work. (If necessary, round to the nearest hundredth.) A + 80 = 165

A furniture company produced 5 times as many beds on shift 2 as it did on shift 1. If a total of 240 beds were produced, how many were produced on each shift? A. Number produced on Shift 1. B. Number produced on Shift 2.