Answer:
B
Step-by-step explanation:
Y=7-3x
Y=10 if x=-1
1-*7-3
=10
Answer:
exact value: 
approximate: x=0.349485
Step-by-step explanation:
Exact Value:
Approximate:
5000-x is the number of dollars in the mutual fund
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
I will tell you use a calculator and leave the answer there. Try the math see if you get it correct. If you don't tell me!
