1x1=1
- - -
3x3=9
one times one is one three times three is nine
Answer:
!2 bottles
Step-by-step explanation:
Given
Required:
Number of bottles for 18.5 liters
Represent this with x.
So:
Cross Multiply
<em>Hence, she needs 12 bottles</em>
For y the first one would be y= 7 , 14,it would be for x =
You need to isolate/get m by itself in the equation:
3(m + 7) = 6(m + 2) Distribute 3 into (m + 7), and distribute 6 into (m + 2)
(3)m + (3)7 = (6)m + (6)2
3m + 21 = 6m + 12 Subtract 3m on both sides
21 = 3m + 12 Subtract 12 on both sides
9 = 3m Divide 3 on both sides
3 = m
PROOF
3(m + 7) = 6(m + 2)
3(3 + 7) = 6(3 + 2)
3(10) = 6(5)
30 = 30