Answer:
Step-by-step explanation:
7. he travels 28*8 = 224 miles on 8 gallons
Rate of change is constant because the graph is a straight line
8. Yes he wil have to stop for petrol because 8 gallons only takes him 224 miles
Answer:
Step-by-step explanation:
Let width = w
Length = w - 7
Perimeter = 2*(length + width)
2*(w-7 + w) = 50
2* (2w - 7) = 50
2*2w - 7*2 = 50
4w - 14 = 50
Add 14 to both the sides
4w = 50+ 14
4w = 64
Divide the entire equation by 4
w = 64/4
w = 16 units
Length = 16 - 7 = 9 units
Answer: a is true
Step-by-step explanation:
The equation model from three times a number is equal to nine is:
3x = 9
the equation have one variable (x)
the answer is: a. 1
hope this help
