Answer:
10-10x
Step-by-step explanation:
All you do is distribute the 10. You can't add numbers if they don't both have the same variable, so you leave it as 10-10x.
Answer:
1:3
Step-by-step explanation:
10 red cards, 10 black cards, and 20 blue cards
We want the ratio of red to other cards
red : blue and black
10 : 10+20
10 : 30
Divide each side by 10
10/10 : 30/10
1:3
Answer:
Nolan is correct.
Step-by-step explanation:
Here's a picture that might help you understand...
If you still need help understanding, I'll explain myself.
Answer:
C. 5
Step-by-step explanation:
Triangle BED is enlarged by scale factor 4.
(25-x)/4 = x
Multiply both sides by 4.
25-x = 4x
Add x on both sides.
25 = 5x
Divide both sides by 5.
5 = x
(y x .12) x .3 = the total cost
