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PtichkaEL [24]
3 years ago
7

It takes 8 minutes for Byron to fill the kiddie pool in the backyard using only a handheld hose. When his younger sister is impa

tient, Byron also uses the lawn sprinkler to add water to the pool so it is filled more quickly. If the hose and sprinkler are used together, it takes 5 minutes to fill the pool. Which equation can be used to determine r, the rate in parts per minute, at which the lawn sprinkler would fill the pool if used alone?
+ 5r = 8
+ 5r = 1
5() = r
= 5r
Mathematics
2 answers:
Mnenie [13.5K]3 years ago
7 0

Answer:

correct answer is option;B

Step-by-step explanation:

horsena [70]3 years ago
5 0
We
let r be the rate in parts per minute at which the lawn sprinkler would fill the pool if use alone then

If the handheld hose and the lawn sprinkler are used together, we have this equation:
5/r + 5/8 = 1

Simplifying this expression,
5(8) + 5r = 1
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PtichkaEL [24]

Answer:

the

Step-by-step explanation:

6 0
3 years ago
Twice the sum of a number and 8 is the same aa the difference of 3 and the number. Find the equation that could be used to find
Nezavi [6.7K]

Answer:

f your number is x, then the difference between that number and 8 would be x-8. Twice that is 2(x-8)

 

Three times the sum of the number and 3 would be 3(x+3). So, you get the equation:

 

2(x-8)=3(x+3)

2x-16=3x+9

x=-25

5 0
3 years ago
Can someone please help me i'll mark brainliest and give a 5 star rating :)))​
Alexxx [7]

Answer:

see below

Step-by-step explanation:

That is a LOT of questions

complement angles add to 90    suppleent angles add to 180

9)  complement = 50   supplelement = 140

13)  compl = 40     suppl = 130  

14) comp = 45        supple = 135

I think you can do the rest, right?

4 0
1 year ago
What is the solution to this system of equations<br>(5z +y=2<br>( 47 +y=5​
prisoha [69]

Answer:

Z = 8.8 Y = - 42

Step-by-step explanation:

Y = 2 - 5Z

Y = 5 - 47

2 - 5Z = 5 - 47

- 5Z = - 44

5Z = 44

Z = 8.8

Y = 2 - 5 (8.8)

Y = 2 - 44

Y = - 41

Y = 5 - 47

Y = - 42

5 0
3 years ago
The table represents the start of the division of 15x3 + x2 - 3x + 2 by 3x + 2.
9966 [12]
The result of dividing 15x^{3}+x^{2}-3x+2 by 3x+2 is 5 x^{2} -3x+1 with no remainder. Please check the step by step procedures in the picture attached.
We can conclude that:
The quotient of the division is 5 x^{2} -3x+1
The remainder of the division is 0
The divisor is 3x+2
The dividend is 15x^{3}+x^{2}-3x+2

4 0
3 years ago
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