Answer:
speed = Distance /Time
10 mph = Distance / 0.5 hours
distance = 10 * 0.5
Distance = 5 miles
speed = Distance /Time
24 mph = Distance /0.5 hours
Distance = 24 * 0.5
Distance = 12 miles
Total distance = 5miles + 12miles
= 17miles
it's answer is C
hope it helps you
To find the surface area you will need to find the area of all 5 surfaces (faces) on the prism. On a triangular prism there are 2 triangular faces and 3 rectangular faces. All 3 rectangular faces are the same and the 2 triangular faces are also the same.
To find the area of the triangular faces, you will use the formula for finding the area of a triangle:
A = 1/2bh
1/2 x 10 x 8.7
A = 43.5 in^2
To find the area of the rectangular faces, you will use the formula for finding the area of a rectangle:
A = bh
10 x 3
A = 30 in ^2
30 + 30 + 30 + 43.5 + 43.5 = 177
The minimum amount of wrapping paper needed for the gift is 177 square inches.
v=lwh
h=v/lw
Therefore:
5850/30 x 10
5850/300 = 19.5
The answer is 19.5 inches.
Your graph should look exactly like the one below.
y = x + 2 (Black)
x + y = 3 (Red)
Now the solution is found in the intersection of the points, which is (0.5,2.5)
Verify:
y = x + 2
2.5 = 0.5 + 2
2.5 = 2.5 (correct)
Cheers
Answer: " x = 9 " .
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Explanation:
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To calculate the mean:
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The mean =
{the sum of all the values in the number set} ÷
{the number of values in the data set} ;
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To solve for "x" ;
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Given that the "mean" is: "8" ;
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8 = { 3 + 7 + 9 + 12 + x } / 5 ;
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↔ { 3 + 7 + 9 + 12 + x } / 5 = 8 ;
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→ { 3 + 7 + 9 + 12 + x } = 8 * 5 ;
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→ { 31 + x } = 40 ;
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↔ x + 31 = 40 ;
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Subtract "31" from EACH SIDE of the equation; to isolate "x" on one side of the equation; and to solve for "x" ;
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→ x + 31 − 31 = 40 − 31 ;
→ x = 9 .
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