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ad-work [718]
3 years ago
12

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?
Mathematics
2 answers:
Aneli [31]3 years ago
6 0

Answer:

The answer is B

Step-by-step explanation:

arlik [135]3 years ago
3 0
I think 8 or 7 because its -3 so +3 to the 5 minutes or 2 since it is a sprinkler hope i help \alpha  \alpha  \alpha  \alpha  \beta  x_{123}  \lim_{n \to \infty} a_n
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Jane drives at a constant rate of 45 miles per hour for 4 hours. How far will she have traveled in that time?
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Amy is helping plan her school's new basketball court. The west edge of the basketball court is located on the line y = 2x + 5.
ipn [44]

Answer:

Line of east wedge is: 2x - y = 96

So, Option 1 is correct.

Step-by-step explanation:

The east edge cannot intersect with the west edge means that two lines are parallel.

If the two lines are parallel then they have same slope. We need to find the slopes of given lines and check which line has slope same as slope of west edge.

Slope of west edge.

y = 2x + 5

The standard equation for slope intercept form is:

y = mx+b

where m is the slope. So, m= 2

Now finding line for east edge.

Option 1.

Convert each given equation to standard slope intercept form and find the slope.

2x -y =96

-y = -2x +96

Multiply with -1

y = 2x -96

m = 2

Option 2.

-2x -y = 96

-y = 2x +96

y = -2x-96

m = -2

Option 3

-y-2x =48

-y = 2x +48

y = -2x -48

m = -2

Option 4.

y+2x = 48

y = -2x+48

m = -2

So, only line of Option 1 has slope = 2 which is equal to the slope of west edge.

Line of east wedge is: 2x - y = 96

So, Option 1 is correct.

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Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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2y=73-(-5)

2y=73+5

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y=78/2

y=39

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3 years ago
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