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2 years ago

five eights of the people on a hike were children. there are 20 children on the hike. how many people total

Mathematics

1 answer:

Lelu [443]2 years ago

5 0

Answer:

There were a total of 32 people on the hike.

Step-by-step explanation:

Represent the number of people total by p. Then:

(5/8)p = c = the number of children

Since there are 20 children on the hike, (5/8)p must equal 20:

(5/8)p = 20

Solve for p by multiplying both sides by (8/5):

(8/5)(5/8)p = 20(8/5), or

p = 32

There were a total of 32 people on the hike.

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A scientist measured a museum specimen. She recorded the measurement as 75 centimeters. What could the scientist have been measu

saw5 [17]

Answer:

75cm is the measurment

Step-by-step explanation:

It would have had to have been the lenght of the gem because 75cm or 75 centimeters is a measurment not the mass of something. The mass is the amount of matter in an object.

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2 years ago

Graph the following equation and find

Maksim231197 [3]

What equation ??????

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2 years ago

The manager at the local auto shop has found that the probability that a car brought into the shop requires an oil change is 0.8

Ber [7]

Answer:

0.85

Step-by-step explanation:

Given two events A and B, the probability that either A or B occurs is given by:

$p(A\cup B) = p(A)+p(B)-p(A\cap B)$

where

$p(A)$ the probability that A occurs

$p(B)$ is the probability that B occurs

$p(A\cap B)$ is the probability that both A and B occur at the same time

In this problem, we know the following facts:

$p(o) = 0.83$ is the probability that the car requires an oil change

$p(b)=0.17$ is the probability that the car requires a brake repair

$p(o\cap b) = 0.15$ is the probability that the car requires both an oil change and brake repair

Therefore, the probability that either o (car requiring oil change) or b (car requiring brake repait) occur is:

$p(o\cup b)=p(o)+p(b)-p(o\cap b)=0.83+0.17-0.15 = 0.85$

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2 years ago

Michelle poured 7/8 cup of water from a pitcher into a glass.then she poured 2/8 cup . What is the change in the amount of water

Stels [109]

<span>the change in the amount of water in the pitcher is</span>5/8 cup

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3 years ago

3x+5=19-4x<br>What does x equal?

alexandr1967 [171]

Answer:

x=2

Step-by-step explanation:

x=2 in the equation 3x+5=19-4x

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2 years ago