Answer:
x=-11
y=-1
Step-by-step explanation:
x=4y-7
2x+9y=-31
2(4y-7)+9y=-31
8y-14+9y=-31
17=-31+14
17y=-17
y=-1
x=4(-1)-7
x=-11
Answer: $208.95
Step-by-step explanation: $199 x .05= 9.95 + $199= $208.95
Answer: This is a quite simple problem. 64 to 48. This would mean
64 - 25%
Knowing this percentage it will equal 48
<em>Answer : 25%</em>
Hope this helped!
Step-by-step explanation:
This problem can solve by the rule of three:
275 miles---------------9 gallons
x---------------------------1 gallons.
x=(275 miles * 1 gallons) / 9 gallons=28.55555.... miles≈28.56 miles.
Answer: 28.56 miles.
X = 9/7.
9/x + 9/x = 14
18/x = 14
18 = 14x
18/14 = x
9/7 = x
