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Vesna [10]
3 years ago
10

Helpp is very important for me and help you again

Mathematics
2 answers:
swat323 years ago
8 0

Answer:

0.4.

Step-by-step explanation:

2 / 5 = 4 / 10 = 40 / 100 = 40% = 0.4

Hope this helps!

Lelu [443]3 years ago
6 0
0.4

Explain:

Each fraction can be turned into a decimal and a percent.

To figure that out you can either divid your fraction (numerator divided by denominator) or you can see 2/5 which is equal to 4/10. And 4/10 is 40% or 0.4.

You could also see that 40 squares are coloured out of 100 of them so you can find out 40 divided by 100 is 0.4.

I hope this not only helps you figure out the answer but also know how to get the answer any other time you have a question like this.
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Twenty-seven is smaller than five times a number increased by seven
JulsSmile [24]

Answer:

27 < 5*n +7

n<4

Step-by-step explanation:

Twenty-seven is smaller than five times a number increased by seven


Increase means add

27 < 5*n +7

Subtract 7 from each side

27-7 <5n+7-7

20 < 5n

Divide by 5

20/5 < 5n/5

4 <n

8 0
3 years ago
Leeza did this to solve an equation. Did she makes an error 4x=7+3(2x-5) 4x=7+6x-5
katrin [286]

Yes, there was a mistake in applying the distributive property. If you have to perform

3(2x-5)

you have to multiply both terms in the parenthesis by 3, not just the first one.

So, the correct expansion would be

3(2x-5) = 3\cdot 2x - 3 \cdot (-5) = 6x-15

8 0
3 years ago
Read 2 more answers
If the sumof two numbers,n and m,is rational,which statement is true?
Nataly_w [17]

Option B:

Both n and m must be rational.

Solution:

Given information:

Sum of two numbers, n and m are rational.

<u>To find which statements are true:</u>

Option A: Both n and m may be rational but do not have to be.

It is not true because n and m given is rational.

It have to be rational.

Option B: Both n and m must be rational.

Yes, n and m must be rational then only the sum of numbers are rational.

It is true.

Option C: Both n and m must be irrational.

Sum of irrationals will be sometimes irrational and sometimes can't add.

So it is not true.

Option D: One number is rational and the other is irrational.

Rational and irrational cannot be add.

So it is not true.

Option B is true.

Both n and m must be rational.

5 0
3 years ago
The Anderson family drove 7.5 hours on the first day of their road trip how many seconds is equivalent to
Slav-nsk [51]

Answer:

27000

Step-by-step explanation:

3 0
3 years ago
Which is more precise 5 kg or 5212 g
Dahasolnce [82]
5 kg is more precise because if you said 5212 g, they will be trying to see what the precise answer is so if you say 5 kg that will save all of the work. 

P.S.: its not 5212 g, its 5000 g. :)
4 0
3 years ago
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