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NeX [460]
3 years ago
15

the ratio to cookies to glasses of milk is 3:1, If there are 25 glasses of milk , how many cookies are there?

Mathematics
2 answers:
LiRa [457]3 years ago
8 0
Answer is 75:25 because if you multiply on one side, you do the same to the other
ollegr [7]3 years ago
3 0

Answer:

75 is the correct answer.

Step-by-step explanation:

The ratio for the cookies and milk is 3:1.

This means that per every glass of milk there are three cookies.

It is necessary to multiply the number of glasses of milk times three, which is the amount of cookies we want to find:

25x3=75.

Due to this, the correct answer is 75.

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Suppose that adult women in China have heights that are normally distributed with a mean = 155 centimeters and a standard deviat
mezya [45]

Answer:

84.134%

Step-by-step explanation:

We solve this question using the z score formula.

The formula for calculating a z-score is z = (x-μ)/σ

where

x is the raw score

μ is the population mean

σ is the population standard deviation.

We are were asked in the question that:

Suppose that adult women in China have heights that are normally distributed with a

mean = 155 centimeters

standard deviation = 8 centimeters. Of the Chinese women, what percent are shorter than 163cm?

Using the z score formula

z = (x-μ)/σ

z = (163 - 155)/8

z = 8/8

z = 1

Determining the Probability value from Z-Table:

P(x ≤ 163) = P(x < 163)

= 0.84134

Converting to percentage

= 0.84134 × 100%

= 84.134%

The percent of Chinese women that are shorter than 163cm is 84.134%

8 0
4 years ago
Slope = 4, point (3,-2) is on the line
Leni [432]

Answer:

y = 4x + b

Step-by-step explanation:

We know that (3, -2) is on this line. So 3 = m(-2)+b.

This leaves us with two variables the slope (m) and the y intercept (b).

But wait a minute, the slope is given to us since it says slope = 4.

Our equation is now, 3 = 4(-2)+b

3 = -8 + b

b = 11.

Our final equation is now y = 4x + b.

(y,x) is a point on this line.

Hope this helped!

JoeLouis2

8 0
3 years ago
I need help with problems 27,28,29,
blagie [28]
27 is D
28 is 42 hours 
 29 is H
tell me if it is right or not
8 0
4 years ago
A person is raising money to go on the marching band's spring tour. He needs to raise $600. So far he has raised $570. What perc
STALIN [3.7K]
95% would be the answer
6 0
3 years ago
A European swallow flies about 14 meters in 1 second.
ivann1987 [24]

Answer:

It could fly 12.6 kilometers.

Step-by-step explanation:

The European swallow fly speed is 12 meters per second.

We have to calculate how many kilometers it could fly in 15 minutes.

This can be calculated using the equivalent factors for each of the units:

- 1 km is equivalent to 1,000 meters.

- 1 minute is equivalent to 60 seconds.

5 0
2 years ago
Read 2 more answers
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