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hjlf
3 years ago
15

Aubrey walks 15 miles in 4 hours. At what unit rate does Aubrey walk?

Mathematics
1 answer:
Gemiola [76]3 years ago
6 0
I think it’s gonna be B.
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Pls help our teacher didn’t explain how to solve these. also show work
Ratling [72]

Answer:

15) f = 18

3f = 54

6f = 108

16) k = 69

Step-by-step explanation:

15)

3f + 6f + f = 180

10f= 180

f = 18

16)

42 + k + k = 180

42 + 2k = 180

2k = 138

k = 69

3 0
3 years ago
Help please! Could you explain it too?
Olegator [25]

Answer:

a. Not proportional

b. Proportional;

k = ⅞

Step-by-step explanation:

A proportional relationship is usually represented in the format, y = kx. k here represents constant of proportionality. This shows that x and y are directly proportional.

a. y = -2x + 9 is not a proportional equation.

b. y = ⅞x is a proportional equation.

Constant of proportionality: k = ⅞

8 0
3 years ago
Lucy has a budget for school stationery of 33, but has already spent 22.47 on books and folders. Let p represent the amount that
Sidana [21]

Answer:

The inequality is;

p≤ 10.53

where 10.53 is the highest value she can spend on other stationery

Step-by-step explanation:

Here, we want to write an inequality

The amount she has to spend is 33

This means she can spend less than or equal to this amount

she has spent 22.47 and still has p to spend

Mathematically;

p + 22.47 ≤ 33

p ≤ 33-22.47

p ≤ 10.53

8 0
3 years ago
<img src="https://tex.z-dn.net/?f=%20%5Cfrac%7B2%7D%7B2m%20-%201%7D%20%20-%20%20%5Cfrac%7B1%7D%7Bm%20%2B%202%7D%20%20%3D%201%20%
Scilla [17]

Answer:

m = 1

Step-by-step explanation:

<u>2(m+2) - (2m-1)</u> = <u>5</u>

(m+2)(2m-1)          3

2m² -1m + 4m -2 = 3

2m² + 3m - 5 = 0

(2m+5)(m-1) = 0

m = 1    This is the only value that satisfies the equation

m = -5/2

3 0
3 years ago
FIND THE INDICATED PROBABILITY FOR THE FOLLOWING:
luda_lava [24]

The value of the probability P(A) is 0.40

<h3>How to determine the probability?</h3>

The given parameters about the probability are

P(A or B) = 0.6

P(B) = 0.3

P(A and B) = 0.1

To calculate the probability P(A), we use the following formula

P(A and B) = P(A) + P(B) - P(A or B)

Substitute the known values in the above equation

0.1 = 0.3 + P(A) - 0.6

Collect the like terms

P(A)= 0.1 - 0.3 + 0.6

Evaluate the expression

P(A)= 0.4

Hence, the value of the probability P(A) is 0.40

Read more about probability at

brainly.com/question/25870256

#SPJ1

3 0
2 years ago
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