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3 years ago

Select the expression that represents the distance between the numbers r and p

Mathematics

1 answer:

taurus [48]3 years ago

5 0

Answer:

Option B

Step-by-step explanation:

Let's understand this problem in a simpler way,

If two points P and R represent the numbers as,

P = 2 and R = - 4

Then distance between these points will be,

P - R = -4 - 2 Or R - P = 2 - (-4)

= -6 Or R - P = 6

= ±6

But the distances are always positive so 6 will be the answer.

That's why we represent the distances between two points as,

|P - R| (Absolute value of the difference)

Option B is the answer.

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5 people made the following grades on the last math test: 45, 83, 45, 77, 99. Use this information to find the mean.

LUCKY_DIMON [66]

Answer:

Mean is 69.8

Median is 77

Range is 54

Step-by-step explanation:

Mean is all numbers added up, then divided by the amount of numbers.

Median is the middle number of all numbers (To find this you put all numbers in order from least amount to highest amount, then you find the most center number of the rest).

Range is the highest number subtracted from the lowest number.

6 0

4 years ago

Read 2 more answers

Katie had 4 full cement blocks and one that was 4⁄6 the normal size. If each full block weighed 3 2⁄4 pounds, what is the weight

sveta [45]

Answer:

The weight of the block that Katie has is 16 1/3 pounds

Step-by-step explanation:

Katie has: 4 full cement blocks and 4/6 (or 2/3 ) of the normal size of a cement block

For one full block, it weighs 3 2/4 ( or 1/2) pounds, if you want to find the answer of the question, you need to multiply the weight with the cement blocks that Katie have.

First do the four full cement blocks:

4 * 3 2/4 = ?

4 * 14/4 = ?

Cancel the 4 that is being multiplied and the 4 that is being divided by 14.

= 14.

Now do the 4/6 (or 2/3) cement block:

2/3 * 3 2/4 = ?

2/3 * 14/4 = ?

Multiply the fractions together:

= 28/12

= 2 1/3

Finally, you add up the full blocks and the 2/3 cement block to get your answer:

2 1/3 + 14 = 16 1/3

The weight of the block that Katie has is 16 1/3 pounds

4 0

4 years ago

Gideon wants to buy a new video game from the store. They are having a sale on all games, and sell the game at a 15% discount. H

marta [7]

Answer:

5%+15%=20%

to find 20% of 28 u multiply 28 x 0.2= 5.6

so to remove the 20% since it's 20% off u subtract 5.6 from 28

28-5.6= 22.4

Step-by-step explanation:

4 0

3 years ago

In the summer a large pool evaporates water at 15% per day. If the pool starts out with 25,700 gallons of water, which function

JulijaS [17]

Answer:

$y=25,700(0.85)^{x}$

Step-by-step explanation:

we know that

In this problem we have a exponential function of the form

$y=a(b)^{x}$

where

y ----> represent the pool’s loss of water

x ----> the number of days

a is the initial value

a=25,700 gal

b ----> is the base

r=15%=15/100=0.15

b=(1-r)=1-0.15=0.85

The function is equal to

$y=25,700(0.85)^{x}$

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4 years ago

A local boys club sold 136 bags of mulch and made a total of $521. It sold two types of mulch: hardwood for $4.00 a bag and pine

Anni [7]

Answer: 14.32

Step-by-step explanation:

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3 years ago