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hammer [34]
4 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]4 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]4 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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Find f(2) if f(x) = 2x + 1.<br> A) 3 <br> B) 5 <br> C) 7 <br> D) 9
Rufina [12.5K]

Answer:

The answer to your question is letter B

Step-by-step explanation:

Process

1.- Write the equation

                                   f(x) = 2x + 1

find f(2)

2.- Substitute x for 2

                                  f(2) = 2(2) + 1

3.- Simplify

                                 f(2) = 4 + 1

                                 f(2) = 5

5 0
3 years ago
Read 2 more answers
This year the CDC reported that 30% of adults received their flu shot. Of those adults who received their flu shot,
Vlad [161]

Using conditional probability, it is found that there is a 0.1165 = 11.65% probability that a person with the flu is a person who received a flu shot.

Conditional Probability

P(B|A) = \frac{P(A \cap B)}{P(A)}

In which

  • P(B|A) is the probability of event B happening, given that A happened.
  • P(A \cap B) is the probability of both A and B happening.
  • P(A) is the probability of A happening.

In this problem:

  • Event A: Person has the flu.
  • Event B: Person got the flu shot.

The percentages associated with getting the flu are:

  • 20% of 30%(got the shot).
  • 65% of 70%(did not get the shot).

Hence:

P(A) = 0.2(0.3) + 0.65(0.7) = 0.515

The probability of both having the flu and getting the shot is:

P(A \cap B) = 0.2(0.3) = 0.06

Hence, the conditional probability is:

P(B|A) = \frac{P(A \cap B)}{P(A)} = \frac{0.06}{0.515} = 0.1165

0.1165 = 11.65% probability that a person with the flu is a person who received a flu shot.

To learn more about conditional probability, you can take a look at brainly.com/question/14398287

7 0
2 years ago
If you have a 2% pay rise on £7 an hour, how much will you get paid an hour?
lidiya [134]
First you need to multiple 7X0.02 and then add that number to 7
8 0
3 years ago
Ally sliced 32 kg of watermelon for a party. She divided the watermelon slices equally between 8 large bowls.
igor_vitrenko [27]

Answer:

4000g

Step-by-step explanation:

32kg=32000g

32000/8 bowls=

4000g

3 0
3 years ago
The weights of professional wrestlers are approximately normally distributed with a mean of 220 pounds and a standard deviation
nikdorinn [45]

Answer:

1.6%

Step-by-step explanation:

The cumulative distribution function (CDF) of a random variable X is denoted by F(x), and is defined as

F(x) = P(X ≤ x). where x is the largest possible value of X that is less than or equal to x

z = (x-μ)/σ,

where:

x is the raw score = 205

μ is the population mean, = 220 pounds

σ is the population standard deviation = 7 pounds

205 -220/7

z = -15/7

z = -2.1428571429

Using the normal cdf function on your graphing calculator,the cumulative distribution is

normalcdf( -2.1428571429, 100)

= 0.01606229

In percent form = 0.01606229 × 100

= 1.6%

5 0
3 years ago
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