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pochemuha
3 years ago
7

A pool can be filled bye one pipe in 10 hours and by a second pipe in 15 hours. How long will it take using both pipes to fill t

he pool?
Mathematics
1 answer:
forsale [732]3 years ago
4 0

Answer:

it will take 25 hours

Step-by-step explanation: add 10 and 15

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Create an equation to solve for x then solve for x.
Ratling [72]

Answer:

Step-by-step explanation:

In parallelogram adjacent angles are supplementary

∠U +∠V = 180

9x + 15 + 6x + 15 = 180

Combine like terms

9x + 6x + 15 + 15 = 180

          15x + 30 = 180

Subtract 30 from both sides

          15x = 180 - 30

         15x = 150

Divide both sides by 15

            x = 150/15

x = 10

∠U = 9x + 15

      = 9*10 + 15

      = 90 + 15

∠U = 105

∠V = 6x + 15

     = 6*10 + 15

     = 60 + 15

∠V = 75

5 0
3 years ago
What is the are of a circle that measures 12 ft in diameter?<br>​
Alexus [3.1K]

Answer:

113.04

Step-by-step explanation:

the equation for the area of a circle is pie times radius squared

5 0
3 years ago
If m&lt;1=40 and m&lt;2=80, what is m&lt;3?
prohojiy [21]

Answer:

60 degrees, 55 degrees, and 50 degrees respectively

Step-by-step explanation:

Equation: m<1+m<2+m<3=180

1. 40+80+x=180 Subtract 120(because 40+80=120)

  x=60

2. 50+75+x=180 subtract 125 (50+75=125)

    x=55

3. 50+80+x=180 subtract 130 (50+80=130)

   x=50

5 0
3 years ago
pls help me i need to past this test this is the LAST TEST before the christmas break and if right will give brainlest
Dafna11 [192]

Answer:

196

Step-by-step explanation:

find the slope with y2-y1 / x2-x1

points (7, 1372) and (12, 2352)

(2352- 1372) / 12-7

= 196

please give thanks by hitting the heart button :)

5 0
3 years ago
Dylan draws up a plan to fence in a yard for his chickens. This distance between grid lines is 1 foot. A. Is 30 feet of fencing
Mazyrski [523]
No it definitely is not
3 0
3 years ago
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