All categories

3 years ago

40 ÷ 1 + 3 - (3x7) + 7-5

2 answers:

6 0

First, multiply the numbers in the <span>parentheses, which is </span>3 times 7 is 21.
Then divide 40 by 1. 40/1 = 40
40 plus 3 is 43, 43 minus 21 is 22.
PLus 7 minus 5 is 24.

enot [183]3 years ago

4 0

First things first. Think of the word
PEMDAS meaning parenthesis, exponents, multiplication, division, addition, subtraction.
First you would check for parenthesis which you do (3x7) so multiply both which come out to 21.
We can skip exponents and multiplication since we have already done it or may not have it. Next is division. Multiply 40 divide by 1 which is 40 now add 3 so 43. And lastly subtract 7-5=2
Your new equation is 43-21+2. So your answer comes out to 24! Hoped this helped.

You might be interested in

Simplify the expression 3/2 (5/3) -1 1/4 + 1/2 Given the answer as a simplified fraction. The simplified expression is a/b.

ella [17]

<h2>Hello!</h2>

The answer is:

The simplified fraction is:

$\frac{7}{4}$

To solve this problem we must remember the following:

- Addition or subtraction of fractions, we add or subtract fractions by the following way:

$\frac{a}{b}(+-)\frac{c}{d}=\frac{ad(+-)bc}{bd}$

- Product of fractions, the multiplication of fraction is linear, meaning that we should multiply the numerator by the numerator and denominator by denominator, so:

$\frac{a}{b}*\frac{c}{d}=\frac{ac}{bd}$

- Convert mixed number to fraction,

$a\frac{b}{c}=a+\frac{b}{c}=\frac{ac+b}{c}$

So, solving we have:

$\frac{3}{2}*\frac{5}{3}-1\frac{1}{4}+\frac{1}{2}=\frac{3*5}{2*3} -1\frac{1}{4}+\frac{1}{2}\\\\\frac{3*5}{2*3} -1\frac{1}{4}+\frac{1}{2}=\frac{15}{6} -1\frac{1}{4}+\frac{1}{2}\\\\\frac{15}{6} -1\frac{1}{4}+\frac{1}{2}=\frac{15}{6} -(1+\frac{1}{4})+\frac{1}{2}\\\\\frac{15}{6} -(1+\frac{1}{4})+\frac{1}{2}=\frac{15}{6}-(\frac{4+1}{1*4})+\frac{1}{2}\\\\\frac{15}{6}-(\frac{4+1}{4})+\frac{1}{2}=\frac{15}{6}-\frac{5}{4}+\frac{1}{2}$

$\frac{15}{6}-\frac{5}{4}+\frac{1}{2}=(\frac{5}{2}-\frac{5}{4})+\frac{1}{2}\\\\(\frac{5}{2}-\frac{5}{4})+\frac{1}{2}=(\frac{(4*5)-(2*5)}{8})+\frac{1}{2}\\\\(\frac{(4*5)-(2*5)}{8})+\frac{1}{2}=(\frac{20-10}{8})+\frac{1}{2}\\\\(\frac{20-10}{8})+\frac{1}{2}=(\frac{10}{8})+\frac{1}{2}\\\\(\frac{10}{8})+\frac{1}{2}=\frac{5}{4}+\frac{1}{2}\\\\\frac{5}{4}+\frac{1}{2}=\frac{(5*2)+(4*1)}{2*4}\\\\\frac{(5*2)+(4*1)}{2*4}=\frac{10+4}{8}=\frac{14}{8}\\\\\frac{14}{8}=\frac{7}{4}$

Hence, the simplified fraction is:

$\frac{7}{4}$

Have a nice day!

8 0

3 years ago

Read 2 more answers

Help???????!!!!!!!??????

Musya8 [376]

I think you divde the fractions

8 0

3 years ago

Which words in the salutation should be capitalized? dear aunt mary, Choose all answers that are correct. A. Dear B. Aunt C. Mar

andreyandreev [35.5K]

Everything should be capitalized. If "dear" is the beginning of a sentence, it should be capitalized. "aunt" and "mary" are a name so they should be capitalized too.

4 0

3 years ago

Read 2 more answers

Picture picture picture

cluponka [151]

Soo what do you need help with? It seems pretty easy. I can help you if you want.

6 0

3 years ago

Read 2 more answers

Ms. D's 4th period geometry class has both freshman and sophomores. There are 27 kids in the class and it has twice as many fres

BARSIC [14]

13.5 freshman well rounded off to 14 freshman

6 0

2 years ago