Answer:
70
Step-by-step explanation:
63/9 = 7
7 * 10 = 70
Answer:
f=5
Step-by-step explanation:
4(f-3)=20 distribute
4f-12=20 add
4f-12+12=20+12... 4f=32 divide
4f/4=20/4..... f=5
Answer:
Yes, BC || DE
Step-by-step explanation:
set up proportion and cross multiply to solve:
15/10 = 12/8
120 = 120
This is true! You can justify by explaining how you cross multiplied like the bold words above :)
One of the numbers is 40 and the other one is 63
confirmation:
63×(2/3)-2=40
and 40+63=103