3 years ago<span>Let x = a certain number of cookies
5x = 3x + 20
5x - 3x = 20
2x = 20
x = 20/2
x = 10
John: 5x = 5(10) = 50
Jerry: 3x + 20 = 3(10) + 20 = 30 + 20 = 50
They both have 50 cookies a piece</span>
Answer:
x =42.5
x+8 =50.5
3x+2 = 129.5
Step-by-step explanation:
The two angles shown are supplementary, so they add to 180
x+8 + 3x+2 = 180
Combine like terms
4x+10 = 180
Subtract 10
4x = 170
Divide by 4
x =42.5
x+8 = 42.5+8 = 50.5
3x+2 = 3*42.5 +2 = 127.5 +2 = 129.5
Answer:
Step-by-step explanation:
3/5 ÷5/7= 21/25