Find the ratio, pls answer quick

George invited 65 students in his school to volunteer at a charity race. 39 of the students signed up to volunteer. What percent

Natali5045456 [20]

39 is 60% of 65.
Hope it helps!

6 0

3 years ago

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Answer the question. Show work

RideAnS [48]

We just need to get the perimeter of the backyard.

Whole rectangle: length = 7ft ; width = 5 ft

Perimeter = 2(7+5) = 2(12) = 24 ft

7 0

3 years ago

Chase collects $27.34 for a fundraiser Sydney collects$9.83 more than Chase ally collects 4times as much as Sydney. how much doe

adelina 88 [10]

So Chase has $27.34.
You add $27.34 to $9.83. (Which is $37.17).
That will give you the amount of how much Sydney has.
To find how much Ally has you times $37.17 by 4.
Basically, you are doing $37.17 + $37.17 + $37.17 + $37.17.
When you have finished adding them you will get the answer.
So the answer is $148.68

8 0

3 years ago

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Aubrey claims that if the dimensions of the parallelogram shown are doubled then the area of the larger parallelogram will be 4

djyliett [7]

Answer:

True

Step-by-step explanation:

Even though we cannot see the parallelogram, we can assume the dimensions of the original parallelogram is height= 3 and base= 6.

If we double the dimensions, we get:

height=6 band base=12.

The area of the original parallelogram is 18 square units.

The area of the enlarged parallelogram is 6×12= 72 square units.

Now,

$\frac{72}{18} = 4$

Hence, the area of the larger parallelogram is 4 times more than the original.

4 0

3 years ago

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The number of chocolate chips in a bag of chocolate chip cookies is approximately normally distributed with mean 1263 and a stan

DENIUS [597]

Answer:

(a) The 29th percentile for the number of chocolate chips in a bag is 1198.65.

(b) The number of chocolate chips in a bag that make up the middle 95% of bags are [1146, 1380].

(c) The inter-quartile range of the number of chocolate chips in a bag of chocolate chip cookies is 157.83.

Step-by-step explanation:

Let the random variable X represent the number of chocolate chips in a bag of chocolate chip cookies.

The random variable X is normally distributed with mean, μ = 1263 and a standard deviation, σ = 117.

(a)

Compute the 29th percentile for the number of chocolate chips in a bag as follows:

P (X < x) = 0.29

⇒ P (Z < z) = 0.29

The value of z for the above probability is, z = -0.55.

Compute the value of x as follows:

$z=\frac{x-\mu}{\sogma}\\-0.55=\frac{x-1263}{117}\\x=1263-(117\times 0.55)\\x=1198.65$

Thus, the 29th percentile for the number of chocolate chips in a bag is 1198.65.

(b)

According to the Empirical rule 95% of the normally distributed data lies within 2 standard deviations of the mean.

P (μ - σ < X < μ + σ) = 0.95

P (1263 - 117 < X < 1263 + 117) = 0.95

P (1146 < X < 1380) = 0.95

Thus, the number of chocolate chips in a bag that make up the middle 95% of bags are [1146, 1380].

(c)

The inter-quartile range of the normal distribution is:

IQR = 1.349 σ

Compute the inter-quartile range of the number of chocolate chips in a bag of chocolate chip cookies as follows:

IQR = 1.349 σ

= 1.349 × 117

= 157.833

Thus, the inter-quartile range of the number of chocolate chips in a bag of chocolate chip cookies is 157.83.

5 0

3 years ago

Find the ratio, pls answer quick​

Find the ratio, pls answer quick