X+1+X+1+X+X=50
4x+2=50
4x=48
X=12
Width is 12
Length is 13
Answer:
A
Step-by-step explanation:
Answer is (1) 160 km in 2 hours and
(2) 16 miles in 12 minutes.
Step by step.
80 km / 1 hour = x km /2 hours
Cross multiply =
x = 160
The second one requires a little more math. Because we are looking at how far in minutes, we change the rate of 80km in 1 hour to 80 km in 60 minutes.
80 km / 60 = x / 12
Cross multiply
12x = 960
Solve for x by dividing both sides by 12
X = 16
I did the math on a print screen to explain the cross multiply.
What ever number A is, it is going to be less than whatever number B is.
Answer:
d) 9pi/8
Step-by-step explanation:
25pi/8 - 2pi
(25-16)pi/8
9pi/8