What is 7/15 divided by 3/4

2 answers:

7 0

Find the reciprocal of the divisor
Reciprocal of 3/4 : 4/3
Now multiply it with the dividend
So, 7/15 divided by 3/4 = 7/15 multiplied by 4/3 = 7*5/ 15* 3
So your answer would be 28/45

BartSMP [9]3 years ago

3 0

Answer:

The answer the calculator gave me is 0.0388888888889

Step-by-step explanation:

Hope that helps

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Simplify and express the answer as a decimal. 3(2.7+5)−2 Enter your answer in the box.

Volgvan

First, add 2.7 and 5 to get 7.7. Then, multiply 7.7 and 3 to get 23.1. Finally, subtract 2 from 23.1.

If you're distributing, then multiply 3 by 2.7 and 5. Then, add and subtract the sum by 2.

Hope this helped!

5 0

3 years ago

What does 8.4 10^5-7.7 10^4 equal?

Alex

Answer:

$\huge\boxed{763,000=7.63\cdot10^5}$

Step-by-step explanation:

$\bold{METHOD\ 1:}\\\\8.4\cdot10^5-7.7\cdot10^4=8.4\cdot100,000-7.7\cdot10,000\\\\=840,000-77,000=763,000\\\\\bold{METHOD\ 2:}\\\\8.4\cdot10^5-7.7\cdot10^4=8.4\cdot10^{1+4}-7.7\cdot10^4\qquad\text{use}\ a^n\cdot a^m=a^{n+m}\\\\=8.4\cdot10^1\cdot10^4-7.7\cdot10^4=84\cdot10^4-7.7\cdot10^4\\\\\text{use the distributive property}:\qquad a(b+c)=ab+ac\\\\=(84-7.7)\cdot10^4=76.3\cdot10^4=7\underbrace{.63}_{\leftarrow1}\cdot10^{4+1}=7.63\cdot10^5$

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3 years ago