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ycow [4]
3 years ago
11

Picture attached please help

Mathematics
1 answer:
bogdanovich [222]3 years ago
5 0

Answer:

D

Step-by-step explanation:

red blood cell = 0.000009 = 9 × 10^{-5}

cold virus = 0.0000003 = 3 × 10^{-7}

Divide diameter of red blood cell by diameter of cold virus

\frac{9(10^-5)}{3(10^-7 )}

= 3 × 10^{-5-(-7)}

= 3 10^{-5+7}

= 3 × 10² → D

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tigry1 [53]
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5 0
3 years ago
12.5% of a number is 25, find the number
tankabanditka [31]

Answer:

200

Step-by-step explanation:

Let's call the number x :
12.5% of x = 25

Changing 12.5% into decimal would be 0.125

Now we have the equation :

0.125x = 25

Divide both sides by 0.125 to make x the subject :

x = 25 ÷ 0.125

x = 200

To check we can substitute this value into the question :

12.5% of 200 = 25

Hope this helped and have a good day

4 0
2 years ago
Find the Prime factors of 1729. Arrange the factors in ascending order. Find a relation between
valkas [14]

Answer:

prime factors in ascending order of 1729 is 7 , 13 , 19

relation between  consecutive prime factors is 6

Step-by-step explanation:

given data

number = 1729

solution

we get here factors of 1729

1729 = 7 × 13 × 19

so that required prime factors in ascending order of 1729 is 7 , 13 , 19

and

now we get relation between these prime factors is the difference between consecutive prime factors is

13 - 7 =  6

19 - 13 = 6

so relation between  consecutive prime factors is 6

4 0
3 years ago
Read 2 more answers
PLEASE HELP I'M DESPERATE!!!<br><br> Order these from least to greatest.<br><br> 5/4, 1, 6/5
Kazeer [188]

Answer:

5/4 6/5 1 or 1 1/4. 1 1/6. 1

Step-by-step explanation:

3 0
4 years ago
Read 2 more answers
What do you add to 2 5/8 to make it 6 ?
jonny [76]
To solve this, I first converted 2 5/8 into an improper fraction (2 × 8 = 16, 16 + 5 = 21) and got 21/8.
Next, you need to find the number that, when divided by 8, equals 6, and you can do this simply by multiplying 8 and 6 together to get 48.
We only have 21, so we next do 48 - 21 = 27.

Now we know that our answer is 27/8, but if you would like it as a mixed number then you just do 27 ÷ 8 = 3 (remainder 3), so as a mixed number your answer is 3 3/8.

I hope this helps!
5 0
3 years ago
Read 2 more answers
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