Ratio & Proportion
Solve for x
4/7 = 16/x
x = 28
25 + -9
16
1/7 + 4/7
5/7
Simplify:
18x + 4 + x +20
19x + 24
A car driving in traffic traveled 80 miles in 4 hours, what was the car's average speed, in miles per hour?
20 mph
Solve for x.
7/9 = x/63
x = 49
-30 + -60
-90
2/5 + 1/2
9/10
Simplify:
20x - 3 - 5x - 11
15x - 14
A speed train in Europe traveled 360 miles in 3 hours. What was the train's average speed?
120 mph
3/9 = 5/x
x = 15
100 - 150
-50
12 2/3 - 3 1/4
9 1/12
Write an expression:
7 less than twice x
2x - 7
Mr. Weishaupt paid $60 for a mega pack of 100 snack size bags of Takis to give out as treats for the students. What is the price of one snack size bag of Takis from this mega pack?
$0.60
The ratio of teachers to students is 1 to 11. If there are 7 6th grade teachers, how many 6th grade students are there?
-42 - (-12)
-30
5 1/5 - 3 2/3
1 8/15
Substitute & Evaluate for x = -3
-2x - 20
-14
Jason ran 4 miles to his friend's house and then back to his own house. If the total trip took him two hours, what was his average speed per mile?
4 miles per hour
A board was cut into two pieces in a ratio of 2:5. If the longest piece was 85 inches long, how long was the entire board?
119 inches
(shorter piece was 34 inches)
20 - (-30)
50
121 1/2 - 119 3/4
1 3/4
Substitute & Evaluate for x = -2
-2x2 - 3x - 4
-6
Shianne was paid $196 for helping to watch her neighbor's daughter. She watched her 4 hours on Monday, 6 hours on Tuesday, and 3 hours each on Wednesday and Thursday. What is her hourly pay rate?
$12.25