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3 years ago

Im having a really bad day help me pleaseeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee

Mathematics

2 answers:

Mama L [17]3 years ago

5 0

Hi there!

$\large\boxed{0.5 \text{ hours, or } 30 \text{ minutes}}$

Use the formula d / s = t to solve for the time needed for each:

Distance = 20 miles

(J)

20 m / 10 mph = 2 hours

(B)

20 m / 8 mph = 2.5 hours

Subtract the times to find the amount of time necessary to wait:

2.5 - 2 = 0.5 hours or 30 minutes.

lara31 [8.8K]3 years ago

3 0

He waited 30 minutes hope your day gets better!

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Help me on this please

dusya [7]

Answer:

1. $2 / 5$ - Fractional form, $0.4$ - Decimal Form

2. $5 / 8$ - Fractional form, $0.625$ - Decimal Form

3. $6 / 7$ - Fractional form, $0.8571$ - Decimal Form

4. $\sqrt{a / b}$

5. $\sqrt{a * b}$

Step-by-step explanation:

1. $\sqrt{4 / 25}$

Steps:

1. Divide - $4 / 25$

2. Then take the square root of what you got - $\sqrt{0.16}$ = $0.4$

2. $\sqrt{25 / 64}$

Steps:

1. Divide - $25 / 64$

2. Then take the square root of what you got - $5 / 8$

3. $\sqrt{36 / 49}$

Steps:

1. Take the square root of the top number - 6

2. Tage the square root of the bottom number - 7

3. Answer is 6/7.

4. $\sqrt{a} / \sqrt{b}$ = $\sqrt{a / b}$

5. $\sqrt{a} * \sqrt{b}$ = $\sqrt{a * b}$

<em><u>Formula:</u></em>

$\sqrt{a} / \sqrt{b}$ = $\sqrt{a / b}$

$\sqrt{a} * \sqrt{b}$ = $\sqrt{a * b}$

5 0

3 years ago

Jade and chet get a weekly allowance plus x dollars for each time the pair walks the dog. they plan to save 40% of their combine

irina1246 [14]

The amount of money Jade and chet will have to purchase the app is $11.6

<h3>How to solve equation?</h3>

Jade = 8 + 2x
Chet = 4x + 6

Where,

x = $2.50

Amount each earned:

Jade = 8 + 2x

= 8 + 2(2.50)

= 8 + 5

= $13

Chet = 4x + 6

= 4(2.50) + 6

= 10 + 6

= $16

Combined earnings = $13 + $16

= $29

Amount planned to save = 40% of combined earnings

= 40% × $29

= 0.4 × 29

= $11.6

Learn more about equation:

brainly.com/question/2972832

#SPJ1

8 0

2 years ago

Please help me with this question if you can

Orlov [11]

Answer:

55y454t

Step-by-step explanation:

54wwrg

4 0

3 years ago

Read 2 more answers

Find the 44th percentile, P44, from the following data! pls help

irina [24]

Answer:

$P_{44} = 29.9$

Step-by-step Explanation:

The 44th percentile, $P_{44}$ , of the given data can be calculated using the kth formula for percentile given as:

$i = \frac{k}{100}(n + 1)$

where,

i = the ranking or the position of the percentile = ?

k = the percentile = 44

n = total number of the given data values = 23

Plug in the values into the formula to find "i"

$i = \frac{44}{100}(23 + 1)$

$i = \frac{44}{100}(24)$

$i = \frac{1,056}{100}$

$i = 10.56$

Since "I", 10.56, is not an integer, round the number down, and round it up to the nearest integer, then look for the position each occupy in the ordered data set, and find their average.

Thus,

$i_{down} = 10.56 = 10$

$i_{up} = 10.56 = 11$

The data occupying the 10th position on the data set = 28.7

11th = 31.1

$P_{44} = \frac{28.7 + 31.1}{2} = \frac{59.8}{2}$

$P_{44} = 29.9$

6 0

3 years ago

The author of a book was told that he would have to cut the number of pages by 17% for the book to sell at a popular price and s

Ber [7]

Answer:

83%

Step-by-step explanation:

100% - 17% = 83%

Cutting the number of pages by 17% leaves 83% of the original number of pages.

5 0

3 years ago