Exam 5: Using Equations to Solve Business Problems

If Argyl earns $93.00 for 7.75 hours of work, how many must he work to earn $571.50?

4 is to 7 as 24 is to 49

If an assembler can package 18 toasters every hour and a half, how many toasters can he assemble in $8 \frac { 1 } { 2 }$ hours?

To remove parentheses, multiply the coefficient by each term inside the parentheses.​

A(n) ____________________ is a fraction that describes a comparison of two numbers or quantities.

A new machine can produce three more than twice the production per hour of the old machine. If the new machine can produce 187 units per hour, how many did the old machine produce?

Solve the equation: 8n − 2 + 4n = 66 − 5n

On Valentine's Day, the flower vendor took in $334 less on rose bush sales than on tulip sales. If the total sales for the day were $818, what were the sales for each flower? A)Roses ____________ B)Tulips ____________

Last month a store sold 4 times as many tapes as CDs. If the total quantity of these two items sold was 360, how many tapes did the store sell?

​4x -3 = 20 is called an expression ​ 7j + 9 is called an equation

The formula for writing 3 is to 5 as 21 is to a number is ​ ​ $\frac { 3 } { 5 } = \frac { 21 } { x }$ ​ 3x = 21(5) ​ 3x = 105 ​ x = 35

If Jillian earns $324 for 16 hours of work, how many hours must she work to earn $486.00?

Solve the equation for the unknown: 5L + 6 = 71

Janet is 3 times as old as her brother Marshall. If the difference in their ages is 6 years, what is the age of each? A)Janet _______ B)Marshall _______

____________________ are mathematical statements expressing a relationship of equality.

Underline the key word(s) and translate into an equation: 6 more than 5 times a number, plus 3 times that number, is 30

If the interest on a $6,500 loan is $520, what would be the interest on a loan of $10,000?

Letters of the alphabet used to represent unknown quantities in equations are called ____________________.

Solve the proportion for X: $\frac { 7 } { 6 } = \frac { X } { 240 }$

Solve the equation: 4x + 49 = 105