Answer:

Step-by-step explanation:

The ratio is 4/3 because you add AC which is 12 and then divided 9 (BC) by 12
Square root of 27.
3^(3/2) is the same as square root of 3 cubed, which is 27. so square root of 27.
7
You divide 28 by 4 and get 7. Then you divide 49 by whatever you get.
Answer:
He can go 10.78 miles
Step-by-step explanation:
This problem can be solve by creating a proportion, knowing that 15.4 miles is to one gallon the same as "x" miles (our unknown) is to 0.7 gallons. This can be set in math terms as the equation that relates these two ratios of miles per gallon:

and to solve for the unknown number of mile, we multiply both sides of the equation by "0.7 gallon" in order to isolate our unknown:
