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2 years ago

Ratio and proportion

1 answer:

6 0

Based on the given tast content; the ratio of green cars to white cars is 1 : 2 and it can be said that there are twice as many white cars as green cars.

<h3>Ratio and proportion</h3>

Number of green cars = 24
Number of white cars = 48

Ratio of green cars to white cars = 24 : 48

= 24 / 48

= 1 / 2

Ratio of green cars to white cars = 1 : 2

Therefore, the ratio of green cars to white cars is 1 : 2 and it can be said that there are twice as many white cars as green cars

Learn more about ratio:

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3X+2Y=5Y+2X-11 (Solve for X) <br> How do i show my work for this equation?

dimulka [17.4K]

Solve for x by simplifying both sides of the equation, then isolating the variable.
x = 3y − 11

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3 years ago

Honestly I don't know what to do at this point please help

shtirl [24]

Answer:

15 yds

Step-by-step explanation:

40 divided by 50 equals 4/5, so the lengths of the other triangle have to match that ratio. 3 fits into 12 four times and 15 five times, which makes it a four to five ratio.

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4 years ago

Mary wrote a book of 1536 pages. She numbered all pages by hand. How many times did she write the digit 6?

abruzzese [7]

<em>Hi there!</em>

<em>If my logic doesn't fail me here, we have a total of 290 + 145 + 4 = 439 total 6s.</em>

<em>Hope this helped you!</em>

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3 years ago

Now consider a cube of mass m with edges of length

LekaFEV [45]

1/6 ma^2

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4 0

4 years ago

Suppose you randomly guess on every question of a 20 question True/False test. Let x = number of questions that you answer corre

castortr0y [4]

Answer:

18.14% probability that you would get at least 12 questions correct.

Step-by-step explanation:

Problems of normally distributed samples are solved using the z-score formula.

In a set with mean $\mu$ and standard deviation $\sigma$ , the zscore of a measure X is given by:

$Z = \frac{X - \mu}{\sigma}$

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

In this problem, we have that:

$\mu = 10, \sigma = 2.2$

What is the probability that you would get at least 12 questions correct?

This is 1 subtracted by the pvalue of Z when X = 12. So

$Z = \frac{X - \mu}{\sigma}$

$Z = \frac{12 - 10}{2.2}$

$Z = 0.91$

$Z = 0.91$ has a pvalue of 0.8186.

So there is a 1-0.8186 = 0.1814 = 18.14% probability that you would get at least 12 questions correct.

6 0

3 years ago