Answer:
21 miles per 1 gallon
Step-by-step explanation:
The unit rate is how many to 1 so, 42 divided by 2 equals 21 so, the answer is given.
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Answer: 7x + 4 y = 2
9x - 4y= 30
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16x / = 32
x= 32:16
x=2
Step-by-step explanation: 7x+4y=2
7*2 + 4y=2
14 +4y=2
4y= 2-14
4y= -12
y= -12 : 4
y= - 3
Answer:
7x+42
Step-by-step explanation:
Answer: 14/4
Step-by-step explanation:
since 4/4 is one three would be 12/4. Adding 2/4 to 12/4 is 14/4. So the answer is 14/4
Perimeter is adding the 3 sides together. Since both triangles have the same perimeter set both triangles to equal:
(x+3 + x+3 + x+3) = (x+3 + 2x-3 + x)
Simplify each side:
3x+9 = 4x
Subtract 3x from each side:
x=9