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kkurt [141]
3 years ago
9

Noah was assigned to make 64 cookies for the bake sale. He made 25% MORE than that. How many cookies did Noah make? Explain how

you got your answer.
PLEASE HELP MEH! WILL MARK BRAINLIEST!! DUE TODAY
Mathematics
1 answer:
bazaltina [42]3 years ago
6 0

Answer:

8 cookies were left after the bake sale. 72 were sold.

Step-by-step explanation:

64*1.25= 80

80*.9= 72

8

125% of 64 is equal to 80.

90% of 80 is equal to 72.

The number left was 10% of the number he made. The number he made was 125% of 64, so the number left was 8

 10% × 125% × 64 = 0.125 × 64 = 8

thats all i could really come up with at the top of my head

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Please help with math problem give 5 star if do
allochka39001 [22]

Answer:

Cities A and C should be in Group 2

Step-by-step explanation:

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2 years ago
Nancy found that x=1 is one solution to the quadratic equation (x 2)2=a. what is the value of a?
trasher [3.6K]

The value of the a in the quadratic equation is 4.

According to the statement

we have given that the x = 1 and the given equation is  (2x)^2=a

And we have to find the value of A here.

So, For this purpose, we know that the

A quadratic equation is an equation of the second degree, meaning it contains at least one term that is squared.

And the given quadratic equation is

(2x)^2 = a

we know that the x  = 1 and put the value of x in it then

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Now for rechecking of the value, put a = 4 in the given equation then

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Put a  = 4

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7 0
2 years ago
Suppose that a study of elementary school students reports that the mean age at which children begin reading is 5.9 years with a
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Answer:

5.9 years.

Step-by-step explanation:

Central Limit Theorem

The Central Limit Theorem establishes that, for a normally distributed random variable X, with mean \mu and standard deviation \sigma, the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean \mu and standard deviation s = \frac{\sigma}{\sqrt{n}}.

For a skewed variable, the Central Limit Theorem can also be applied, as long as n is at least 30.

For a proportion p in a sample of size n, the sampling distribution of the sample proportion will be approximately normal with mean \mu = p and standard deviation s = \sqrt{\frac{p(1-p)}{n}}

In this question:

Mean of the population is \mu = 5.9

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By the Central Limit Theorem, the same population mean, of 5.9 years.

3 0
3 years ago
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