I need help for B,3,4

Mathematics

2 answers:

frosja888 [35]3 years ago

6 0

Idk b but 3 is because they are the same distance away from 0 and idk how to explain 4

Naddik [55]3 years ago

3 0

the number line shows that 0 is its own opposite because it is the only number that is the same distance from zero as zero. :)

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1 +5x2 + (1 + 3) to the second power

GarryVolchara [31]

Answer:

Step-by-step explanation:

1 + (5)(2) + (1 + 3)^2

1 + 10 + (1 + 3)^2

11 + (1+3)^2

11+4^2

11+16

<h3><u>Hope this helps! Have an amazing day!</u></h3>

4 0

2 years ago

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%?

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