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almond37 [142]
2 years ago
6

Gail practices swimming for 1» hours every day. How much time does she practice in a week? In 5 weeks? HELPP

Mathematics
1 answer:
Fudgin [204]2 years ago
7 0

Answer: it would be 8,75 * 5 = 43,75, which is 43 hours and 45 minutes

Step-by-step explanation:

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Which of the following is a point-slope equation for a line with the point (-2, 4) and a slope of 3?
never [62]

Answer:

y=3x+10

Step-by-step explanation:

y-4=(x+2)3

y-4=3x+6

y =3x+10

5 0
3 years ago
An item is regularly priced at $64. Amy bought it at a discount of 10% off the regular price.
DiKsa [7]
$57.60 is the correct answer
7 0
2 years ago
13. To rent a car, you pay a one-time charge of $45 plus a charge of $0.29 for
deff fn [24]

Answer:

<em>The correct choice is (c) $79.80</em>

Step-by-step explanation:

The total charge for renting a car can be split into two parts:

A fixed one-time charge of $45

A variable charge of $0.29 per driven mile.

If I drive 120 miles, the variable charge will be 120*0.29 = $34.80

The total charge will be $45 + $34.80 = $79.80

The correct choice is (c) $79.80

7 0
3 years ago
A nature preserve worker calculates there are 6,000 deer in Sharon Woods Park. She also estimates that 75 more deer die than are
Nikolay [14]

The linear equation used to represent this situation is y = -75x + 6000

A linear equation is in the form:

y = mx + b;

where y, x are variable, m is the slope of the line and b is the y intercept.

Let y represent the amount of deer present in x years. There are 6000 deer presently, hence a = 6000. Also 75 more deer die than are born each year. Hence m = -75.

The linear equation is given by:

y = -75x + 6000

In 3 years:

y = -75(3) + 6000

y = 5775

For there to be 5325 deer:

5325 = -75x + 6000

x = 9 years

Find out more at: brainly.com/question/21105092

5 0
2 years ago
A market researcher for Eric’s Electronics wants to study TV viewing habits of residents in Chicago. The individuals in the surv
Elena L [17]

Answer:

Step-by-step explanation:

Confidence interval is written in the form,

(Sample mean - margin of error, sample mean + margin of error)

The sample mean, x is the point estimate for the population mean.

Since the sample size is large and the population standard deviation is known, we would use the following formula and determine the z score from the normal distribution table.

Margin of error = z × σ/√n

Where

σ = population standard Deviation

n = number of samples

From the information given

1) x = 17.5

σ = 5

n = 50

To determine the z score, we subtract the confidence level from 100% to get α

α = 1 - 0.9 = 0.1

α/2 = 0.1/2 = 0.05

This is the area in each tail. Since we want the area in the middle, it becomes

1 - 0.05 = 0.95

The z score corresponding to the area on the z table is 1.645. Thus, confidence level of 90% is 1.645

Margin of error = 1.645 × 5/√50 = 1.16

Confidence interval = 17.5 ± 1.16

3 0
3 years ago
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