5-2(x+6)=145-2x-12=14
-7-2x=14
-2x=21
-10.5
<u>Answer</u>
Incorrect
<u>Explanation</u>
Unpack the problem:
Let the distance round the track to be X.
Speed is the ratio of distance to time.
Robert run a distance of (1/2)x
Elaine run a distance of (3/4)x
Make a plan:
Finding the speed of each.
Compare their speeds to determine who ran faster than who.
Solution:
Robert's speed =(1/2)x/(5/6)
=1/2×6/5x
= (3/5)x
= 0.6x
Elaine's speed = (3/4)x/(9/10)
= (3/4)×(10/9)x
= (5/6)x
= 0.83333x
<em>Elaine ran faster than Robert. </em>
<u>Look back and explain:</u>
0.83333x > 0.6x
Elaine's speed is higher than Robert's speed.
This shows that Elaine ran faster than Robert.
Answer:
10 inches squared
Step-by-step explanation:
Area is length times width
A= lw
A= 15/2 x 4/3
A = 60/6
A= 10 in^2
Hey there!
The equation would be 20(50) = x
The total cost of the equation would be : 1,000
Do 50 x 20.
Hope I was able to help!
