To figure this out, we need to use fractional proportions.
Currently, we have $120, the amount earned, and 2 days, the current rate.
Our fraction for this is: 120 / 2 = x / 6, x being the amount earned in 6 days.
Let's use a little technique to help us answer faster.
With our current money earned, 120, and our current days, 2, we can divide 120 by 2 to find out how many we earned in 1 day.
120 / 2 = 60.
We earned $60 per day.
With this formula, 60d, d being the amount of days, we can solve quicker.
We are solving for 6 days, so multiply $60 by 6 days.
60 x 6 = 360
Your proportion is :
120/2 : 360/6
I hope this helps!
Divide total amount spent by total gallons bought:
47.82 / 16.9 = $2.83 per gallon
The answer 0.14 is equivalent to 140%. You can check this answer by moving the decimal 3 places to the right.
A rule you can use to find the answer to #10 is adding a layer of pennies around each edge
7/8=x/8
if x/y=z/y where y=y, then x=z
we have
7/8=x/8
8=8
therefor 7=x
the missing value=7
