Answer: $26.98
Step-by-step explanation:
1. You have the following information given in the problem above:
- Lou filled the tank with gas that cost $3.80 per gallon.
- Lou's car had 5.9 gallons in the 13-gallon tank.
2. Therefore, if he filled the tank, you can calculate the total amount of money Lou spent, by subtracting 13 gallons and 5.9 gallons and multiplying the result by $3.80.
3. Then, the result is:
It is calculations because with measurements you would just put a decimal. The calculator uses improper fractions.
Answer:
try to work this out your self then use quiz let if you can
Step-by-step explanation:
The water is 4/10 of the full depth, so its surface has a radius that is 4/10 of the radius at the top. Of course, the surface of the water has the shape of a circle.
The area of a circle is given by
... A = π·r²
... A = π·(0.4·3 m)² = 1.44π m²
The surface area of the top of the water is 1.44π m² ≈ 4.524 m².
(a) Let s represent the number of fruit pies sold by Mr. Sanchez's class.
Let k represent the number of bottles of juice sold by Mr Kelly's class.
s + k = 79 . . . . . . together, the classes sold 79 items
1.65s + 1.36k = 118.17 . . . . . revenue from the sales was 118.17
The system can be solved by any of several means. You can substitute for k, for example.
1.65s + 1.36(79 - s) = 118.17
0.29s = 10.73 . . . . . . subtract 1.36×79
s = 10.73/0.29 = 37
Then k = 79 - 37 = 42, and the solution is (s, k) = (37, 42).
(b) Mr Sanchez's class earned $1.65·37 = $61.05.
Mr Kelly's class earned $1.36·42 = $57.12.
Mr Sanchez's class earned more money.
(c) Mr Sanchez's class earned $61.05 - 57.12 = $3.93 more.
