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

A local Walmart sells sweatpants ($7) and jackets ($14). If total sales were $6,160 and customers bought 8 times as many sweatpants as jackets, what would be the number of jackets sold?

Al Resse and Marci Rey received a total of $210,000 from a deceased relative's estate. They decided to put away $50,000 in a trust for their child and divide the remainder into 1/4 for Marci and 3/4 for Al. How much will Al receive?

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

When an equation uses addition, the variable can be solved by the opposite process: subtraction.

Runyon Co. sells T-shirts ($4) and shorts ($5). If total sales were $850 and people bought 3 times as many T-shirts as shorts, what would be the number of T-shirts and shorts sold? A. 150 T-shirts B. 50 shorts

Kohl's sells casual shirts for $9 and polo shirts for $18.00. Total sales were $1,080, and customers bought 4 times as many casual shirts as polo shirts. How many casual shirts did Kohl's sell?

Marika is 8 times Barry's age. If the difference in their age is 7 years, how old is Marika?

What number decreased by 630 equals 1,510?

If Sears Roebuck sells six times as many batteries as Firestone and their difference in sales is 250,000 batteries, how many batteries did each sell?

Art Neuner and Paul Kosponato sell trucks for Blue Auto. Over the past year, they sold 240 trucks. Assuming Paul sells 7 times as many as Art, how many trucks did each sell?

10A - 20 = 4A + 80 (answer to closest hundredth).

Coffee costs $12 per case, and tea costs $8 per case. If an order comes in for a total of 250 cases for $2,600, what was the specific number of cases of tea? (Hint: Let C = cases of coffee.)

Staples offer CDs ($2.00) and boxes of computer paper ($3). If total sales were $1,560 and customers bought 5 times as many CDs as boxes of computer paper, how many CDs were sold?

Lane is 10 times Mel's age. If the difference in their age is 27, how old is Mel?

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

One-ninth of all sales at a local Subway are for cash. If cash sales for the week were $690, what were Subway's total sales?

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

Jill Co. sells thermometers ($2) and hot water bottles ($6). If total sales were $312 and customers bought 10 times as many thermometers as hot water bottles, what would be the number of hot water bottles sold?

A furniture company produces 4 times as many beds on shift 2 as on shift 1. If a total of 1,000 beds were produced, how many were produced on each shift? A. Shift 1 produced 200 B. Shift 2 produced 800

Q + 92 = 128; Q equals: