Help plz ill give extra points

Mathematics

2 answers:

Alecsey [184]3 years ago

5 0

Answer: Point B

Point B is above (-2, -1)

scoray [572]3 years ago

4 0

Answer:

Point B

Step-by-step explanation:

Graph (-2,-1)

In the image, I graphed the point (-2, -1) in red.

The question asks for 2 units above. In black, I jumped up 2 spots above starting from our red point.

When I did this and I found myself directly on Point B.

This means the answer must be Point B.

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24% of students buy there lunch, 190 students bring their lunch from home. How many students are there in total

miv72 [106K]

so we know that 24% of the students buy their lunch at the cafeteria, and 190 students brownbag.

well, 100% - 24% = 76%, so the remainder of the students, the one that is not part of the 24% is 76%, and we know that's 190 of them.

since 190 is 76%, how much is the 24%?

$\bf \begin{array}{ccll} amount&\%\\ \cline{1-2} 190&76\\ x&24 \end{array}\implies \cfrac{190}{x}=\cfrac{76}{24}\implies 4560=76x \\\\\\ \cfrac{4560}{76}=x\implies 60=x \\\\[-0.35em] ~\dotfill\\\\ \stackrel{\textit{total amount of students}}{190+60\implies 250}$