Multiplying and Dividing Rational Numbers
Solve.
(−4)(3/5)
What is -12/5 ?
What is the C.O.P?
y=-3/2x
What is -3/2x?
A car travels 9/5 miles in 3/10 hours. What is the unit rate?
What is 6 miles per hour?
Solve for x.
2/3x+5=x−1
What is x =18?
A $120 item is marked up 15%, then discounted 10%.
What is $24.20?
Solve.
3/8÷(−9/4)
What is 6?
What is the C.O.P?
Table:
x: −2,3,5
y: 4,−6,−10
What is -2?
7/8 pounds of almonds cost $5.60. What is the unit rate?
What is $6.40 per pound?
Solve for x.
3/4x−5/2=1/2x+3
What is x =22?
A $180 item is marked up 30%, then discounted 15%.
What is $198.90?
Solve.
(−5/6)(9/10)÷(3/4)
What is -1?
What is the C.O.P?
A tank drains 15/4 gallons in 3/2 minutes.
What is 5/2 minutes?
A pipe fills 11/6 gallons in 2/3 minutes. What is the unit rate?
What is 11/4?
Solve for x.
5/6x+4=2/3x−8
What is x=-72?
A store increases a $400 item by 12%, then applies a 25% clearance discount.
What is $336?
Solve.
(12/5)÷(3/2)×(−5/6)
What is 4/3?
What is the C.O.P?
y=kx (x,y) = (6/5,9)
What is 15/2?
A student reads 13/2 pages in 5/4 hours. What is the unit ?
What is 26/5 per hour?
Solve for x.
7/5x−3/2=9/10x+11/2
What is x =10?
An item is marked up 40% and then discounted 35%, resulting in a price of $182. What was the original price?
What is $200
Solve.
[(−7/8)(16/21)]÷(2/3)
What is 1?
What is the C.O.P?A cyclist’s distance varies proportionally with time. After 5/3 hours, they travel 40 miles.Find distance after 7/6 hours.
What is 28 miles?
A machine produces 17/3 parts in 7/10 hour. What is the unit rate?
What is 170/21 parts per hour?
Solve for x.
4/3(x−6)=2/5(x+9)
What is x =18?
After a 20% discount and then an additional 10% discount, the price is $144. Original price?
What is $200?