3/5 of a conductors club went on the last camping trip. If 39 people went on the trip how many are in the club

1 answer:

7 0

Okay so we know that 3/5 of the conductors club went on the last camping trip. We also know that 3/5 of the club is equal to 39 people. All we have to do is find the last 2/5 and add it to our 3/5 to get the answer:

To find how much each 1/5 is, divide 39 by 3. This will give us 13. Then we multiply it by 5, because there are five parts. This gives us 65. So the answer is 65

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How to find the answers to nine and ten? Please show your work.

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Nine
Comment
The figure consists of 2 figures, a rectangle and a trapezoid. You should break them up and find the area of each separately and add to get the total.

Rectangle.
Area = L * W
L = 40 yd
W = 25 yd.
Area = 40 * 25 = 1000 square yards.

Trapezoid
B1 = 40 yards
B2 = 65 yards
H = 55 - 25 yards
H = 30 yards
Area = (B1 + B2)* H / 2
Area = (40 + 65)*30 / 2 Add the 2 bases together.
Area = ( 105) * 30 / 2 You can divide either the 30 or the 105 by 2. Do the 30
Area = (105) *15
Area = 1575 square yards.

Find the total Area
Total Area = rectangle + trapezoid
Total Area = 1000 + 1575
Total Area = 2575 <<<<< Answer

Ten
Comment
Assume the other side has no windows or doors. Both sides consist of 1 triangle and 1 rectangle.

Problem A
Rectangle
Area = l * w
L = 28 feet
W = 8.5 feet
Area = 28 * 8.5
Area = 238 square feet.

Triangle
Area = 1/2 Base * Height
Base = 28 feet
Height = 12.5 - 8.5
Height = 4
Area = 1/2 * 28 * 4
Area = 56 square feet.

Total Area (1 Side)
Total Area (1 Side) = 56 + 238
Total Area (1 side) = 394

Total Area (Both sides)
Total Area (both sides) = 2 * 294
Total Area (both sides) = 588 square feet.

Problem B
Comment
You have 588 square feet. First figure out the number of bundles and then calculate the cost.

Bundles
Bundles = Total Square Feet (Rounded up) / 100
Bundles = 588 / 100 = 5.88 bundles.
But you cannot buy 0.88 bundles So you have to round up, otherwise you'll have a bit of the building uncovered.

You may not care in reality, but the question does. So your answer is that you have 6 bundles.

Cost
1 bundle costs 75 dollars.
6 bundles cost x

1/6 = 75 / x
x = 6 * 75
x = 450 dollars <<<<< Answer 10B

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URGENT

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$y=r\sin\theta=7\sin\dfrac{2\pi}3=\dfrac{7\sqrt3}2$

Then the sum of this vector with $\langle3,4\rangle$ is

$\left\langle-\dfrac72,\dfrac{7\sqrt3}2\right\rangle+\langle3,4\rangle=\left\langle-\dfrac12,4+\drac{7\sqrt3}2\right\rangle$

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