Work shown above! Answer is
a = 144
b = 67
Answer:
2.14
Step-by-step explanation:
Answer:
X= -12 Y=10
Step-by-step explanation:
So 30/48=15/(x+9)
this could be easily solved by recognizing the proportion (the other way is usiing full algebra and doing multiply both sides by 48(x+9) and then divide both sides by 30 then subtract 9)
30 is 2 times of 15
therefor 48 is 2 times of (x+9)
48=2 times (x+9)
divide both sides by 2
24=x+9
subtract 9
15=x
x=15
456÷100=4.56
How to check your work: 456÷4.56=100
