Answer:
Step-by-step explanation:
We have two fractions and are being asked to add them both.
5/10 and 8/100 don't have the fractions, but 5/10 can be simplified to 1/2, meaning that to make the same denominator, we have to find the half of 100, which would be 50. Now turn the fraction into 50/100.
50/100 + 8/100
58/100
This can be simplifed :
First off, your handwriting needs a bit of help. Do you expect people to read that?
Answer:
Add all of your given parts and set them equal to 360. Your equation should look like this: U+61+2U-49+2U-32=360
Solve for U and your answer should be U=76
Let A represent the speed of car A. Using your formula,
.. A*2 = D
.. (A +15)*1.5 = D . . . . . the same distance in a shorter time at a higher speed
Equating the two expressions for D, we get
.. 2A = 1.5(A +15)
.. 2A = 1.5A +22.5 . . . . . eliminate parentheses
.. 0.5A = 22.5 . . . . . . . . .subtract 1.5A
.. A = 22.5/0.5 = 45 . . . .divide by 0.5
Car B was 15 mph faster than this.
Car B traveled at 60 miles per hour.
