All categories

4 years ago

What is a career that you can use for adding and subtracting fractions

Mathematics

1 answer:

xenn [34]4 years ago

6 0

Answer:

A math teacher

Step-by-step explanation:

You might be interested in

How do I simplify the expression

stiks02 [169]

ANSWER: ab√3ac

Is this enough for you ?

5 0

3 years ago

Single bottles are sold for $1.25. A six pack is sold for $7.20. A twelve pack is sold for $13.80 and a case of 24 bottles is so

Dmitriy789 [7]

Answer: 5 cents less

Step-by-step explanation:

The unit price for the 24 pack would be $1.10 and the unit price for the 12 pack would be $1.15.

8 0

3 years ago

BRAINLIEST!!!!

Len [333]

Answer:

The answer is option 3.

Step-by-step explanation:

Option 3 is correct because it has parentheses around 40 - x, but not the cube itself or the 3rd power if you didn't know what I meant. Anyway, the reason this is correct is because if you look at any order of operations, you will notice that parentheses always comes before powered numbers, so if you were to choose, say option 2, it would be a completely different answer than option 3, not to mention wrong also.

8 0

3 years ago

2a 2 b 3 and -4a 2 b 3 are like terms.

jolli1 [7]

Answer:

Tiger Algebra{(2a-b)^3+(a-2b)^3} - Free yet powerful Solver Simplifier that ... Step 2 : Pulling out like terms : 2.1 Pull out like factors : 9a3 - 18a2b + 18ab2 - 9b3 =Step-by-step

explanation:

3 0

3 years ago

sarah can complete a project in 90 minutes and her sister betty can complete it in 120 minutes if they both work on the project

alukav5142 [94]

Answer:

It will take them approximately 51.43 minutes to complete the project together

Step-by-step explanation:

This is what is called a "shared job" problem.

The best way to work on them is to start by finding the "portion" of the job done by each of the people in the unit of time.

So, for example, Sarah completes the project in 90 minutes, so in the unit of time (that is 1 minute) she completed 1/90 of the total project

Betty completes the project in 120 minutes, so in the unit of time (1 minute) she completes 1/120 of the total project.

We don't know how long it would take for them to complete the project when working together, so we call that time "x" (our unknown).

Now, when they work together completing the entire job in x minutes, in the unit of time they would have done 1/x of the total project.

In the unite of time, the fraction of the job done together (1/x) should equal the fraction of the job done by Sarah (1/90) plus the fraction of the job done by Betty. This in mathematical form becomes:

$\frac{1}{x} =\frac{1}{90} +\frac{1}{120}\\\frac{1}{x} =\frac{4}{360} +\frac{3}{360}\\\frac{1}{x} =\frac{7}{360} \\x=\frac{360}{7} \\x=51.43\,\,min$

So it will take them approximately 51.43 minutes to complete the project together.

8 0

4 years ago