A. 18 is 20% of 90
B. 15 is 25% of 60
C. 12 is 30% of 40
D. 24 is 40% of 60
E. 39 is 60% of 65
F. 78 is 30% of 234
(Sorry I have to go, but hopefully I helped you)
Answer:
1 1/12
Step-by-step explanation:
3/4 x 3/3
1/3x4/4
9/12+4/12=13/12
The fraction 13/12 Cannot be reduced, But the fraction 13/12 is the same as 13 divided by 12
So 13/12=1 1/12
Therefore 3/4+1/3=1 1/12
7x7x7x7 written in exponential form would be 7^4 or 7 to the fourth power.
hope this helps .
5 1/7 x 1/9= 36/7 ×1/9= 4/7
8-3/2= 8-1 1/2= 7 1/2
Answer:
x=2 and y=−6
sorry this is pretty long, I did not know if you needed the steps or not
Step-by-step explanation:
−2y−10=x;−10x−y=−14
Solve−2y−10=x for x
−2y−10=x
−2y−10+−x=x+−x
−x−2y−10=0
−x−2y−10+2y=0+2y
−x−10=2y
−x−10+10=2y+10
−x=2y+10
-x/-1=2y+10/-1
x=−2y−10
Substitute−2y−10 for x in−10x−y=−14
−10x−y=−14
−10(−2y−10)−y=−14
19y+100=−14
19y+100+−100=−14+−100
19y=−114
19y/19=-114/19
y=-6
Substitute−6 for y in x=−2y−10
x=−2y−10
x=(−2)(−6)−10
x= 2
x=2 and y=−6
