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elena55 [62]
3 years ago
14

The principal of East High School wants to buy a new cover for the sand pit used in the long-jump competition. He measured the s

and pit and found that the length is 29.2 feet and the width is 9.8 feet. What will the area of the new cover be?
Mathematics
1 answer:
Ganezh [65]3 years ago
3 0

Answer: area is 286.16 ft²

Step-by-step explanation:

Length of the sand pit is 29.2 feet and the width is 9.8 feet.

L= 29.2 ft

W = 9.8 ft

To find out the area, all we have to do is multiply the lenght by the width:

And do not forget that to calculate the area, all units must be the same and for the area, it is always the unit squared, in this case, feet square or simply (ft²).

A = l*w

A = 29.2 * 9.8 = 286.16 ft²

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Answer: rate of tug of the river = 7 miles per hour

rate of the boat = 17 miles per hour

Step-by-step explanation:

Let the speed of the boat be x miles per hour

Let the speed of the tug of the river be y miles per hour

Speed = distance / time

If a boat goes downstream 72 miles in 3 hours, the the speed is

72/ 3 = 24 miles per hour

Since the speed is higher than when it went upstream, it means that it moved in the same direction with the wind hence, it moved in still water.

The total speed would be x -y. Therefore

x + y = 24 - - - - - - -1

If a boat goes downstream 60 miles in 6 hours, the the speed is

60/ 6 = 10 miles per hour

Since the speed is lower than when it went downstream, it means that it moved in the opposite direction of the tug of the river.

The total speed would be x -y. Therefore

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Adding equation 1 and equation 2

2x = 34

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4 years ago
What is the sum of <br> -12 1/2 +4 1/2
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3 years ago
4) During a school carnival, students from the middle school raised money by selling crafts, food, game tickets, and school play
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$225 was earned from the craft sales

and $40 was earned from the play.

Given, During a school carnival, students from the middle school raised money by selling crafts, food, game tickets, and school play admissions.

Of each dollar earned, $0.15 came from games. Craft sales earned 3 times as much as games. Food sales were 4 times the amount earned from the play.

Let the amount earned by play be x,

Now, Games earned = 0.15×500 = $75

Also, crafts earned 3×75 = $225

Now, as play earned x, then food earned 4x.

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