Answer:
y=2.4
Step-by-step explanation:
9y-2+y=5y+10
(combine like terms)
10y-2=5y+10
(subtract 5y from both sides)
5y-2=10
(add 2 to both sides)
5y=12
(divide both sides by 5)
y=2.4
Answer:
x = 5
Step-by-step explanation:
Ashley and Adam spent a total of 31 hours on their projects so: 3x+2+4x-6 = 31
3x+2+4x-6 = 31
7x-4 = 31
7x = 35
x = 5
Answer: 5.4y + 1.3
Step-by-step explanation:
Combining like terms
5.4y + 1.3
It would be 19. Because...
Expression: $0.55n = $10.45
Work: 10.45 / 0.55 = 19 ounces
Proof: 19 x 0.55 = $10.45
This can be solved by ratio and proportion. The first condition is
3 1/2 hours is to 1/3 tank of gas
The proportion relation is
3 1/2 : 1/3 :: x : 1/2
where x is the number of hours that Tanya can drive
7/2 / (1/3) = x / (1/2)
Solving for x
7/6 = x/2
x = 14/6 or 2 and 1/3 hours<span />
