Answer:
First: work out the difference (increase) between the two numbers you are comparing. Then: divide the increase by the original number and multiply the answer by 100. % increase = Increase ÷ Original Number × 100. If your answer is a negative number then this is a percentage decrease.
Answer:
S = 5y + 4
Step-by-step explanation:
f is Sara's father, y is Sara, b is Sara's brother and S is sum
3y = f
b = y + 4
S = f + y + b
= 3y + y + y + 4
= 5y + 4
Hope this helps!
1. Divide both sides by 4 = 1/2
2. Divide both sides by 4 = 1/3
3. Divide both sides by 3 = 1/3
4. Divide both sides by 2 = 1/2
5. Divide both sides by 3 = 4/5
