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miskamm [114]
3 years ago
7

Devide 60 in the ratio of 2:3​

Mathematics
2 answers:
nevsk [136]3 years ago
5 0

Answer:

Let the amounts be 2x and 3x.

Then 2x+3x=60

So, 5x=60

So, x=60/5=12

So, amounts are

2x=2*12=24

And 3x=3*12=36

Hope this helps you!

Step-by-step explanation:

Volgvan3 years ago
3 0
Vide 60 into two parts in the ratio 2 : 3.

Solution:

The two parts are 22+3
2
2
+
3
× 60 and 32+3
3
2
+
3
× 60

i.e., 25
2
5
× 60 and 35
3
5
× 60

i.e., 24 and 36

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jekas [21]
2.) Given: There are 30 students. 24 are wearing sneakers.

Work: We can figure this out by finding the exact percentage of sneaker-wearers in the class.

To find the percentage, you do 24/30. 24/30 is equal to 80%.


Answer: Joe is wrong. The percentage of students wearing sneakers is 80% and not 70%.


3.) Given: There are 40 people total. 2 women per 3 men.

Work: 2:3 women to men

If we multiply both by 10, we will get 50 people in total.

20:30 = 50

So we need to shrivel this down to 40 by taking out 5 on both sides of the ratio.

50 - 5 - 5 = 15:25 = 40

But the ratio need to be divisible by 2 because of the 2 women that are needed per 3 men. We can do this by moving over one human to the men’s side.

There are 14 women and 26 men. I didn’t use any of the strategies there listed because I don’t even remember what those are. I’m in grade 9. I would say that the ratio table works best because I just used ratios...


4.) Given: Find simplified fraction of silicon. 100%.

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This is the simplified form.


Answer: 7/25


3 0
3 years ago
In the U.S., 95% of children have received their DTaP vaccine. Calculate the probability that fewer than 700 out of a sample of
Studentka2010 [4]

Answer:

0.0183

Step-by-step explanation:

The percentage of students, who received their DTaP vaccine is 95%.

This implies that:

p = 0.95

and

q = 1 - 0.95 = 0.05

The standard deviation of the proportion is

=  \sqrt{ \frac{pq}{n} }

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We want to find the probability, that the sample proportion,

\hat p \leqslant  \frac{700}{750} \\    \hat p \leqslant  0.9 \bar3

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5 0
3 years ago
Pacey's computer is infected with a virus. The number of files the virus corrupts doubles every 8 minutes. The following express
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Answer:

x=8*2

Step-by-step explanation:

6 0
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Answer:

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Step-by-step explanation:

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