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USPshnik [31]
1 year ago
10

Felicia wanted to find the number of boys in the school band if 30% of the 50 students are boys. Is her answer correct? Explain

why or why not.
Mathematics
2 answers:
xenn [34]1 year ago
6 0

<em>Sample:</em>

<em>No, Felicia’s answer is not correct. She should have divided by 2, not multiplied. 30 divided by 2 is 15. So 15 of the 50 students in the band are boys.</em>

docker41 [41]1 year ago
4 0

Answer:

Creo que con 15

Step-by-step explanation:

50 -------> 100%

X ---------> 30%

X = (50*30)/100

X= 15 boys

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sineoko [7]

Answer:

-12x^{2}y and 4x^{2}y

Step-by-step explanation:

We are given the term 3x^{2}y.

<em>It is known that, 'A monomial is an algebraic expression consisting of one term'.</em>

So, we add the given options to 3x^{2}y.

1.  3x^{2}y+3xy=3xy(x+1)

2. 3x^{2}y-12x^{2}y=-9x^{2}y

3.  3x^{2}y+2x^{2}y^{2}=x^{2}y(3+2y)

4.  3x^{2}y+7xy^{2}=xy(3x+7y)

5.  3x^{2}y-10x^{2}=x^{2}(3y-10)

6.  3x^{2}y+4x^{2}y=7x^{2}y

7.  3x^{2}y+3x^{3}=3x^{2}(y+x)

As, we can see that only option 2 and 6 results in an expression having one term.

Thus, adding -12x^{2}y and 4x^{2}y to 3x^{2}y results in a monomial.

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