All categories

3 years ago

The difference of twelve times a number and nine times a number

Mathematics

2 answers:

inna [77]3 years ago

6 0

Since the problem states "a number" and again "a number", I assume it;'s the same number. Let the number be x.

12x - 9x = 3x

The difference of twelve times a number and nine times a number is three times the number.

Crank3 years ago

6 0

12x-9y

Difference means subtraction, so the difference between 12 times a number is known as 12x because we do not know what is being multiplied by 12. Same with 9 times a number. Since 12 and 9 have two numbers that we don't know the value of, we have to change one of them to a different variable because we do not know if it is the same number or not. So it would be 12x-9y, or any letters you choose.

You might be interested in

a file that is 278 megabytes is being downloaded. If downloaded is 14.1% complete, how many megabytes been downloaded? To round

Gekata [30.6K]

14.1% of 278 is 39.2. So 39.2 megabytes have been downloaded.

4 0

4 years ago

Read 2 more answers

13.) Solve for M 14.) Solve for A 17.) Solve for H

brilliants [131]

Answer:

See Below (Isolate the variables)

Step-by-step explanation:

13) d = 4AM solve for M

Divide both sides by 4A

$\frac{d= 4AM}{4A}$

$\frac{d}{4A} = M$

14) $\frac{A}{6}$ = f+h solve for A

Multiply both sides by 6

A = 6( f+h)

15) h - m = qb solve for H

Add m to both sides

h - m = qb

+ m +m

h = qb + m

3 0

4 years ago

A polynomial P(x) and a divisor d(x) are given. Use long division to find a quotient Q(x) and the remainder R(x). Express P(x) i

Vilka [71]

It's a bit hard to explain but I hope this helps

5 0

4 years ago

The length of a rectangle is 4 cm less than 3 times its width. If the width is x cm, then the length is

Feliz [49]

Answer:

Length: 3w-4

Step-by-step explanation:

Length: 3w-4

Width: W

*You don't have to, but I am currently trying to reach the next level, and all I need is some more brainliest answers. If you think my answer was brainly enough, you can make my answer the brainliest, but no pressure. I just help people for fun! :) Thank you, have a great day!*

6 0

3 years ago

Which is better to buy 14 rolls of paper towels for $18

Feliz [49]

In order to find out what deal is better:

We have to find the unit rate for each deal

Total amount of paper towels ÷ The price

So it would be....

18 ÷ 14 = 1.285714
12 ÷ 10 = 1.2

Short Answer:

The better deal is 10 rolls of paper towels for $12.

Long Answer:

I wanted to find out the price per roll of paper towel for each deal so I created a unit rate problem which is the numerator divided by the denominator. From there, I was able to get my answers, compare which one was less than the other, and select the best deal.

Hopefully this helped >-<

3 0

2 years ago