7x-5=5x+23
7x-5x=23+5
2x=28
x=28/2
x=14
<span>Chris' average speed is 3.5mph:
Lets take Chris' brother speed = B
then Chris speed = (B+ 1) mph-------given in the question
and:
The average speed for covering 18 miles= chris' average speed + his brother's
average speed = (B+ 1) + B
since Speed = Distance covered / time taken
then average speed for 18 miles can also be found by: 18 miles/3 hours = 6 miles per hour
then we have; (B+ 1) + B = 6mph
(B +1) = (6-B)
B+B = 6-1=5
2B=5
B=5/2=2.5 mph (this is Chris' brother average speed)
Hence Chris' average speed is = B+1= 2.5+1= 3.5mph</span>
Answer:
5
Step-by-step explanation:
Replace 20 instead of m
20/4=5
Answer:
A. 14
Step-by-step explanation:
Okay, so the square is 25 and the circle is 39.
For example, if you take out the square from the circle, that leaves the shaded areas.
39-25=14
14 is your answer.
Cheers!
Answer:
The answer is 3
Step-by-step explanation:
Plug in 2 for all the y variables and solve:
4(2)-(3+2)=
8-5=3
