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lara [203]
3 years ago
5

You are given the difference of the numbers of boys and girls in a class and the ratio of boys to girls. How many boys and how m

any girls are in the class?
4 more girls; 9 for every 13
Mathematics
1 answer:
Tema [17]3 years ago
7 0

Answer:

Am sure boys are 13and girls also 13

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Venita is factoring the expression 32ab-8b. She determines the GCF and writes the factored expression as 8b(4a-0). Which best de
Nimfa-mama [501]
Let's go through the steps of factoring that Venita should take.

1.) Find the greatest common factor (GCF). We only have two terms, so that makes it pretty easy.
32 = 1, 2, 4, 8, 16, 32
8 = 1, 2, 4, 8
The greatest common factor of 32 and 8 is 8. We can also factor out a <em>b</em> since that term appears in each part of the original expression. The GCF and variable should go on the outside of the parentheses.
8b(       )

2.) Now let's figure out what should go in the middle of the parentheses. To do this, use the original expression and divide each term. This is written in the parentheses. 

32ab ÷ 8b = 4a
8b ÷ 8b = 1

This would then result in the factored expression 8b(4a - 1). You can always check this by using the distributive property. Distribute 8b out to both expressions:
8b x 4a = 32ab
8b x 1 = 8b
32ab - 8b is the expression she started with, so your factored expression works!

Now that we went through the steps to solve the factored expression, let's check her answer. The only difference between Venita's and ours is that she has 0 as the second term while we have a 1. It seems that she had subtracted the GCF from the second term instead of dividing.
6 0
4 years ago
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If P = {3, 5, 7, 11, 13, 17, 19), what is n(P)?
Darina [25.2K]

Answer:

the n(P) of P = {3, 5, 7, 11, 13, 17, 19} is "128".

Step-by-step explanation:

n(P) is the <u>Cardinality</u> of the set P. Its formula is 2^k.

where k = number of elements in the set.

Hope this helps :)

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2 years ago
A randomly selected a group of 200 stray cats had 150 which had already been spayed or neutered if the town's entire stray cat p
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I think the answer to the question is 2,250
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3 years ago
You get a 180-day $3,000 consumer loan at 9% interest You are required to pay a $100 setup fee at the time you get the loan. Bas
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The interest on the loan is
.. I = P*r*t = 3000*.09*180/365 = 133.15

Your effective rate is
.. r = I/(Pt) = (100 +133.15)/(3000*180/365) = 15.8%
6 0
3 years ago
Amir and Marvin continue until they each flip a coin
Ahat [919]

We are told that each person flips a coin 200 times. We know that a coin has two options when heads or tails fall, therefore, the results between Amir and Marvin are compared with the number of heads and the number of tails that each one obtained.

The theoretical probability says that out of 200 times a coin is flipped by having 50% heads or tails come out, 100 must be heads and 100 must be tails, theoretically obviously speaking.

Therefore with these values it would be the comparison.

4 0
3 years ago
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