A ratio is a rate. Sometimes, always, or never true? Give an example.

Answers

Answer 1

Answer: Uhh, well a rate is a special ratio in which the two terms are in different units and a ratio is a comparison between two numbers or measurement. So I guess it's never true!

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The sum number of boys and 15 girls

Answers

Answer:

b + 15

Step-by-step explanation:

Let:

"boys" = b

"girls" = g = 15

Note that: "sum" = addition.

Combine:

b + 15 is your numerical expression of your question.

Answer:

1 to 15

Step-by-step explanation:

1 boy/ 15 girls

it takes 10 workers 5 days to complete a road repair when working 2 hours a day. working at the same pax’s how many days will it take 2 people working 5 hours a day to finish it?

Answers

It takes 10 workers 5 days to complete a road repair when working 2 hours a day.

So, this becomes : $2*5*10=100$ man hours required to finish the work.

Given is, if 2 people work for 5 hours a day, then let the number of days to finish the road be = d

So, total man hours = $2*5*d=10d$

Now, $10d=100$ or $d=10$

Hence, it will take 10 days for 2 people working 5 hours daily, to complete the work.

It will take 10 days for 2 people working 5 hours a day to finish the road repair.

Further Explanation:

From the question;

10 workers can finish road repair in 5 days working 2 hours a day

We need to find;

The number of days required to complete the road repair by 2 workers working 5 hours a day.

Assuming the number of days required to complete the work is x

Number of working hours of 10 people is 10 hours ( 2 hours a day for 5 days)

Number of working hours of 2 people is 5x hours (5 hours a day for x days)

Note that; the number of workers or people is inversely related to the number of working hours.

Therefore;

Product of number of people and working hours or work done is a constant

Thus;

10 × 10 = 2 × 5x

100 = 10 x

x = 10

Therefore;

2 workers working 5 hours a day will require 10 days to complete the road repair.

Keywords: rate of work, number of hours, number of days required to complete the job.

Learn more about;

Rate of work: brainly.com/question/1144815
Example of a similar question: brainly.com/question/12355798

Level: Middle school

Subject: Mathematics

Topic: Rate of work

A driveway is 81 ft. long, 6 ft. wide and 4 inches deep. How many cubic feet of concrete will be required for the driveway

Answers

The equation for volume is v = length x width x height. We are given all of these, however one of the measurements is in different units than the others, so we need to convert the units before we do our multiplication...

4 inches x 1 ft / 12 in = 4/12 = 1/3 ft

Now we can multiply our equation...

v = length x width x height
v = 81 x 6 x 1/3
v = 486/3
v = 162 cubic feet

First the units must all be in feet.
4 inches has to be converted to feet
4 inches x 1ft/12 inches = 4/12 ft = 1/3 ft

The driveway is a rectangular prism.
Area = length x width x height
Area = 81 ft x 6 ft x 1/3 ft = 162 cubic feet

there are 1,000 workers in a factory each worker works 30 hours a week and is paid $10.50 an hour how much does the company pay the workers altogether each week

Answers

Well, each hour is 10.50. If each worker works for 30 hours, find how much money they will make for 30 hours. Each worker will make 315 dollars per week. There are 1000 workers, so the company pays all 1000 workers 315,000 dollars per week.

10.50*30 = 315

315*1000= 315,000

So 315,000 is the answer

If m∠A = 87° and m∠B = 32°, find m∠1. A) 29°
B) 61°
C) 83°
D) 119°

Will give 5 stars thx and brainliest 17 points plz hurry

Answers

All internal angles of a triangle will add up to 180 degrees. Since angle A and B are given to us as 87 and 32 degrees respectively, we can easily find angle C by adding A and B together and then subtracting from 180.

87 + 32 = 119 degrees
180 -119 = 61 degrees

Angle C = 61 degrees

Now we can easily find angle 1 when we know that angles on one side of a straight line will always add up to 180 degrees. Since angle C is 61 degrees then angle 1 is...

180 - 61 = 119 degrees

Answer D.

Answer:

D:119

Step-by-step explanation:

What is the prime factorization of 65

Answers

Answer:

Prime factorization of 65 is $5 * 13$

Solution:

Need to find the prime factorization of 65.

Prime factorization is finding all the prime factors of 65.

Method is to take prime number one by one . check whether the given number is divisible by the prime number till you get all the prime factors of given number.

In our case number is 65 . since given number 65 is not divisible by first two prime number that are 2 and 3 , divide 65 by third prime number = 5

$(65)/(5) = 13$

That means 65 = $5 * 13$

Now if you see, both factors that are 5 and 13 are prime numbers.

So prime factorization of 65 is $5 * 13$

65 has factors of 5 and 13

5•13

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