Answer:20 and 15 gallons
Step-by-step explanation:
Given
The first car gets 25 miles per gallon
The second car gets 15 miles per gallon
Two cars consumed 35 Gallons
they went for 725 miles in total
suppose the first car consumes x gallons
so, the second car consumes 35-x gallons of gas
We can write
First consumed 20 gallons and second consumed 15 gallons
The third side of the triangle could be between 1 and 15 units, exclusive. This is because there is a theorem in geometry that states that, if you add 2 of a triangle's sides, the third side has to be less than the sum of the first two sides. This means that the third side has to be less than 8 + 7 = 15. So the third side is less than 15 units. This also means that the third side plus another side has to be greater than the last side. To find the minimum value, you take the smallest side, in this case, 7, and create an inequality. The inequality would be 7 + x [the third side] > 8. Solving this inequality, you get that x > 1. This means that 1 < x < 15. That is the range of values for the third side.
The answer is: " 471 cm² " .
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The formula for the surface area, "S.A.", of a "cylinder":
S.A. = 2 π r² + 2 π r h ;
in which:
"S.A." = "surface area" of the cylinder; for which we wish to solve;
π = 3.14 (approximation we shall use) ;
r = radius = 5 cm (given; from figure);
h = height = 2 cm (given; from figure);
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To solve for the surface area, "S.A." . let us plug in our known values, and solve:
S.A. = 2 π r² + 2 π r h ;
S.A. = 2 * (3.14) * (5 cm)² + 2 * (3.14) * (5 cm) * 10 cm) ;
= 2 * (3.14) * (5²) * (cm²) + 2 * (3.14) * 5* 10 * cm² ;
= 2 * (3.14) * (25) * (cm²) + 2 * (3.14) * 5* 10 * cm² ;
= 157 cm² + 314 cm² ;
= 471 cm² .
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The answer is: " 471 cm² " .
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You can just do 12/3 which = 4.
Broken down you will see,
3m = 1hr
6m = 2hr
9m = 3hr
12m = 4hr
So the answer is 4hours
