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Alexeev081 [22]
3 years ago
12

How do I solve this problem it is to hard for me I need help can u help

Mathematics
1 answer:
viktelen [127]3 years ago
8 0
All you need to do is follow the rules of PEMDAS ? Do you know what that is ?
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A certain pipe can be used to fill a pool with water in 2 hours. A second pipe can be used to fill the pool in 4 hours. How long
Kryger [21]

Answer:

1 1/3 hours

Step-by-step explanation:

Pipe 1 alone:

fills the pool in 2 hours

in 1 hour, it fills 1/2 of the pool

Pipe 2 alone:

fills the pool in 4 hours

in 1 hour, it fills 1/4 of the pool

Pipe 1 and Pipe 2 working together:

fill the pool in x hours

in 1 hour, they fill 1/x of the pool

Working together, in 1 hour the two pipes fill 1/2 + 1/4 of the pool.

Working together, in 1 hour the two pipes fill 1/x of the pool.

Therefore,

1/2 + 1/4 = 1/x

2/4 + 1/4 = 1/x

3/4 = 1/x

x = 4/3

x = 1 1/3

Answer: 1 1/3 hours

6 0
3 years ago
7. Agrupa para sumar.<br>-5 +8 +(-2)​
Brums [2.3K]

Answer:

Obtendrías 1

Step-by-step explanation:

Primero resta 5 de 8 para obtener 3,

luego reste por 2 para obtener 1

¡Espero eso ayude!

6 0
3 years ago
Read 2 more answers
3x-5y= -25<br> Solve for x
UkoKoshka [18]
Your answer will x= 5y/3-25/3

7 0
3 years ago
I NEED HELP PLEASE! :)
Romashka-Z-Leto [24]

Circle equation: (x - h) + (x - k) = r²

(h, k) = center

r = radius

The center is (-7, 4)

To find the radius, take the square root of 49.

√49 = 7

The radius is 7.

Best of Luck!

6 0
2 years ago
PLEASE HELP!!!!!!!!!!!!!!!!!!!!!
kakasveta [241]

Answer:

true

Step-by-step explanation:

the powers are first, they are in alphebetical order

<h2><em><u>xoxo, </u></em></h2><h2><em><u>your highness...</u></em></h2>
5 0
2 years ago
Read 2 more answers
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