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inysia [295]
3 years ago
8

A pool covers costs about $17.50 per square meter. Calculate the cost of covering the Children's pool.

Mathematics
2 answers:
Anit [1.1K]3 years ago
8 0
First calculate the area of the pool, which is 15 x 15, = 225 sq meter, 
and just multiply the cost for each sq meter by the area, 
17.5 x 225
therefore the cost will be $3937.5
arsen [322]3 years ago
6 0
In order to answer your question, you must find the area of the children's pool. Since it is mentioned that the pool's shape is a square and has a side of 15m, you have to find the area of the square, which is s^2. 15m^2 is equal to 225 square meters. Since one square meter costs $17.50, the total cost of covering the pool is 17.50*225, which equals to $3937.50.
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Mr. Sanchez’s class sold fruit pies for $1.55 each and Mr. Kelly’s class sold bottles of fruit juice for $1.40 each. Together, t
hoa [83]

Answer:

Mr. Sanchez's class sold 28 fruit pies and Mr. Kelly's class sold 32 bottles of fruit juice.

Step-by-step explanation:

Let x be the number of fruit pies sold and y be the number of bottles of fruit juice sold.

Together, the classes sold 60 items, so

x + y = 60

Mr. Sanchez’s class sold fruit pies for $1.55 each, so x fruit pies cost $1.55x.

Mr. Kelly’s class sold bottles of fruit juice for $1.40 each, so y bottles of fruit juice cost $1.40y.

Together, the classes  earned $88.20 for their school, so

1.55x + 1.40y = 88.20.

You get the system of two equations:

\left\{\begin{array}{l}x+y=60\\ \\1.55x+1.40y=88.20\end{array}\right.

From the first equation:

x=60-y

Substitute it into the second equation:

1.55(60-y)+1.40y=88.20\\ \\93-1.55y+1.4y=88.2\\ \\-0.15y=88.2-93\\ \\-0.15y=-4.8\\ \\0.15y=4.8\\ \\15y=480\\ \\y=32\\ \\x=60-32=28

Mr. Sanchez's class sold 28 fruit pies and Mr. Kelly's class sold 32 bottles of fruit juice.

8 0
3 years ago
AD is the perpendicular bisector of BC.
masha68 [24]

5x-10= 3x+10

5x-3x= 10+10

2x÷2= 20÷2

x= 10

3 0
3 years ago
Read 2 more answers
2.5 x 2.5 x 2.5 - 1.4 x 1.4 x 1.4<br>(2.5)2+ 2.5 X 1.4 + (1.4)2​
melomori [17]

Answer:

a) 2.5×2.5×2.5-1.4×1.4×1.4=12.881

b) (2.5)2+2.5×1.4+(1.4)2=31.5

Step-by-step explanation:

yuh multiple 2.5 three times and subtract 1.4 multiple three times. 2.5×2.5×2.5-1.4×1.4×1.4

15.625-2.744=12.881.

b) when opening bracket Yuh multiple the number in the bracket by the number outside the bracket. when bracket is open Yuh can now add, multiple to obtain your answer please

(2.5)2+2.5×1.4+(1.4)2

5+2.5×1.4+2.8

7.5×4.2=31.5

8 0
3 years ago
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77julia77 [94]

Answer:

oh well that's very confusing.. wish u luck

5 0
3 years ago
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Answer:

2 7/40 Carrots

About 2 Carrots

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3 years ago
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