Answer: (a) 9
<u>Step-by-step explanation:</u>
1st multiple of 3: 1(3x)
2nd multiple of 3: 2(3x)
3rd multiple of 3: 3(3x)
Sum = 4(1st multiple of 3) + 6
1(3x) + 2(3x) + 3(3x) = 4(3x) + 6
3x + 6x + 9x = 12x + 6
18x = 12x + 6
6x = 6
x = 1
Largest (3rd) multiple is: 3(3x)
= 9x
= 9 · 1
= 9
Answer:
Let's call these numbers 4x and 6x, sum of 4x and 6x will be equal to 200, meaning 10x=200, If we divide both sides by 10, x will be equal to 20 and, the larger number 6x will be equal to, 6*20=120
Step-by-step explanation:
The yearly cost for a non-member would be : y = 0.20x
5/25 = x/20
To solve a proportion cross multiply:
(5 * 20) = (25 * x)
Simplify:
100 = 25x
Divide both sides by 25:
x = 100/25
x = 4
