Answer:
2/3
Step-by-step explanation:
1) Move the 7a to the other side
2) Move the 3
3) Combine like terms
4) Divide by 9
5) Answer is 2/3
9 because twice as many means x times 2; if there are 18 girls, divide by 2 and you get 9. Nine times two is 18. :)
Answer:
3
Step-by-step explanation:
look at where the points at
Answer: w=18
Explanation: 7×6 = 42 so to get W you have to multiply 3 by 6. 3×6 = 18.
Answer:
17. 42
18. 12
19. 12
20. 12
Step-by-step explanation:
Simply substitute the given values into the variables. So if m = 6 and n = 2:
7m = 7(6) = 42
6n = 6(2) = 12
mn = (6)(2) = 12
3m - 6 = 3(6) - 6 = 18 - 6 = 12