| << Chapter < Page | Chapter >> Page > |
Solve Number Problems
In the following exercises, solve each number word problem.
The sum of a number and three is forty-one. Find the number.
38
Twice the difference of a number and ten is fifty-four. Find the number.
One number is nine less than another. Their sum is negative twenty-seven. Find the numbers.
One number is eleven more than another. If their sum is increased by seventeen, the result is 90. Find the numbers.
One number is two more than four times another. Their sum is Find the numbers.
The sum of two consecutive integers is Find the numbers.
Find three consecutive even integers whose sum is 234.
Find three consecutive odd integers whose sum is 51.
15, 17, 19
Koji has $5,502 in his savings account. This is $30 less than six times the amount in his checking account. How much money does Koji have in his checking account?
Translate and Solve Basic Percent Equations
In the following exercises, translate and solve.
300% of 82 is what number?
72 is 30% of what number?
127.5 is what percent of 850?
Solve Percent Applications
In the following exercises, solve.
The bill for Dino’s lunch was $19.45. He wanted to leave 20% of the total bill as a tip. How much should the tip be?
$3.89
Reza was very sick and lost 15% of his original weight. He lost 27 pounds. What was his original weight?
Dolores bought a crib on sale for $350. The sale price was 40% of the original price. What was the original price of the crib?
$875
Jaden earns $2,680 per month. He pays $938 a month for rent. What percent of his monthly pay goes to rent?
Find Percent Increase and Percent Decrease
In the following exercises, solve.
Angel’s got a raise in his annual salary from $55,400 to $56,785. Find the percent increase.
2.5%
Rowena’s monthly gasoline bill dropped from $83.75 last month to $56.95 this month. Find the percent decrease.
Solve Simple Interest Applications
In the following exercises, solve.
Winston deposited $3,294 in a bank account with interest rate 2.6%. How much interest was earned in 5 years?
$428.22
Moira borrowed $4,500 from her grandfather to pay for her first year of college. Three years later, she repaid the $4,500 plus $243 interest. What was the rate of interest?
Jaime’s refrigerator loan statement said he would pay $1,026 in interest for a 4-year loan at 13.5%. How much did Jaime borrow to buy the refrigerator?
$1,900
In 12 years, a bond that paid 6.35% interest earned $7,620 interest. What was the principal of the bond?
Solve Applications with Discount or Mark-up
In the following exercises, find the sale price.
The original price of a handbag was $84. Carole bought it on sale for $21 off.
$63
Marian wants to buy a coffee table that costs $495. Next week the coffee table will be on sale for $149 off.
In the following exercises, find ⓐ the amount of discount and ⓑ the sale price.
Emmett bought a pair of shoes on sale at 40% off from an original price of $138.
ⓐ $55.20 ⓑ $82.80
Notification Switch
Would you like to follow the 'Elementary algebra' conversation and receive update notifications?
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|