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hammer [34]
3 years ago
12

Mr. Simpson spent 5 hours working on his lawn. If he spent 25% of the time edging the flower beds, how much time did he spend ed

ging?
Mathematics
2 answers:
Mila [183]3 years ago
3 0
He spent 1.25 hours edging.

You can get this by multiplying the total amount of time by the percentage.

.25 * 5 = 1.25
andre [41]3 years ago
3 0

Answer:

1.25 hours = 1 hour and 15 minutes

Step-by-step explanation:

The total amount of time that he worked was 5 hours.

And 25% of that time he spend it edging the flower bends.

Thus, in order to solve this problem we need to find how much is 25% of 5 hours.

To find a percentage of any quantity 'x' we apply the following formula:

\frac{x(percentage) }{100}

in this case the quantity is 5 hours, and the percentage we want is 25%, so:

25% of 5 hours = \frac{5(25)}{100}

25% of 5 hours = \frac{125}{100}

25% of 5 hours = 1.25hours

he spend 1.25 hours edging. Or you can also represent 1.25 hours as 1 hour and 15 minutes

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The perimeter of a rectangular swimming pool is 160 feet . The length of the swimming pool is four times its width. Find the dim
Murrr4er [49]
Formula for Perimeter of Rectangle:

P = 2(L + W)

Plug in 160:

160 = 2(L + W)

L = 4W
So we can plug in '4W' for 'L' in the first equation.
<span>160 = 2(L + W)

160 = 2(4W + W)

Combine like terms:

160 = 2(5W)

160 = 10W

Divide 10 to both sides:

W = 16

Now we can plug this back into any of the two equations to find the length.

L = 4W

L = 4(16)

L = 64

So the width is 16, and the length is 64.</span>
6 0
3 years ago
Read 2 more answers
The value of <br><img src="https://tex.z-dn.net/?f=%20%5Csqrt%7B%20-%2025%7D%20" id="TexFormula1" title=" \sqrt{ - 25} " alt=" \
Andreas93 [3]
2.23606797749979
This is the answer
7 0
2 years ago
A rectangular parking lot must have a perimeter of 440 feet and an area of at least 8000 square feet. Describe the possible leng
tangare [24]

Answer:

The possible parking lengths are 45.96 feet and 174.031 feet

Step-by-step explanation:

Let x be the length of rectangular plot and y be the breadth of rectangular plot

A rectangular parking lot must have a perimeter of 440 feet

Perimeter of rectangular plot =2(l+b)=2(x+y)=440

2(x+y)=440

x+y=220

y=220-x

We are also given that an area of at least 8000 square feet.

So, xy \leq 8000

So,x(220-x) \leq 8000

220x-x^2 \leq 8000

So,220x-x^2 = 8000\\-x^2+220x-8000=0

General quadratic equation : ax^2+bx+c=0

Formula : x=\frac{-b \pm \sqrt{b^2-4ac}}{2a}

x=\frac{-220 \pm \sqrt{220^2-4(-1)(-8000)}}{2(-1)}\\x=\frac{-220 + \sqrt{220^2-4(-1)(-8000)}}{2(-1)} , \frac{-220 - \sqrt{220^2-4(-1)(-8000)}}{2(-1)}\\x=45.96,174.031

So, The possible parking lengths are 45.96 feet and 174.031 feet

3 0
3 years ago
Giovanni justifies whether the expression –4x – 8 is equivalent to Negative 2 (x + 1) minus 2 (x + 3) by letting x = 3 in both e
Vladimir [108]

Answer:

When x = 3, the solutions to the expressions are–20 and –20

Step-by-step explanation:

–4(3) – 8   Multiply

-12 - 8       Subtract

-20

-2(3 + 1) - 2(3 + 3)     Simplify in the parentheses

-2(4) - 2(6)                 Multiply

-8 - 12                        Subtract

-20

               

6 0
3 years ago
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Thirty minutes of exercise per day can reduce your blood pressure. Which of the following is a guideline for establishing causal
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Answer:

opt. (d)

Step-by-step explanation:

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2 years ago
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