Proportions
If there are 6 boys and 3 girls, what is the ratio of girls to boys in lowest form?
There is 1 boy for every 2 girls.
What is 50% of 16?
8
Combine like terms:
2x + 17x + 14 + 6
19x + 20
534 + h = 1823
h = 1289
Ja'nya had $75. She bought a shirt that cost $9.75 and a disposable camera for $23.90. How much money does she have now?
$31.35
Simplify
144:60
12:5
What is 87.5% of 8?
7
Combine like terms:
50d - 14b + 45 - 5 + 12b
50d - 2b + 40
Solve:
40y + 5 = 125
y = 3
The sales tax in Tulsa is 8.517%. If an item costs $114.99, what would it cost after tax?
$124.78
Tracy can fix 27 iPhones in 6 hours. How many can she fix in 20 hours?
90 iPhones
What percent of 30 is 20?
.666667
=
66%
Find the difference:
(3g + 3g) - (4g + 15)
2g - 15
Solve:
160=8(2 + 3g)
g = 6
A music store is having its “Black Friday” sale. The store will give $5 off for the second item a customer purchases. Emma wants to buy a pair of headphones for $25 and a CD for $18.50. How much does she need to pay in total?
$38.50
Solve for x to make these proportional:
5/6 = x/36
x=30
What percent of 30 is 60?
200%
Find the sum:
(27n - 8.2) + (5 - 14m)
27n - 3.2 - 14m
Solve:
12x + 8 = 32
x = 2
Vanessa earns a base salary of $400.00 every week with an additional 5% commission based on everything she sells. Vanessa sold $1650.00 worth of items last week. What was Vanessa's total pay last week?
$482.50
Last week Bill earned $252 for a 30-hour week. What was his pay rate? What would he have earned for a 40-hour week?
His pay rate was $8.40/hour, and he would've earned $336.
What is 19% of 252?
47.88
Find the difference:
(d - 2.5f + 16c) - (-4d + 9c - 1.5f)
5d - f + 7c
Solve:
3(m + 5) - 12 = 9
m = 2
Jess and her 4 friends started a lawn mowing business. They split the profits from every lawn they mow evenly between them. They charged one customer $75 to cut his grass. After they put 10% of what they made aside to save for a new lawn mower, how much did each of them get paid?
Each person gets paid $13.50.