Ask question

Ask question

All categories

Murljashka [212]

2 years ago

14

An art teacher needs to 5 boxes of markrrs to complete a project with a class of 20 students. How many boxes of markers will he

need to buy for a class of 28 students?

1 answer:

sleet_krkn [62]2 years ago

4 0

20students : 5 boxes

Divided by 5

4students : 1 boxes

28students : x boxes

28/4 = 7

28students : 7 boxes

You might be interested in

Hey I hope this helps many people but how do you do this problem <br><br> 5x=0.4

Scrat [10]

X=0.08 hope it helps love

4 0

2 years ago

Read 2 more answers

Hello… please help What is a parabola in mathematics?

Airida [17]

A parabola in mathematics is basically plane curve which is mirror-symmetrical and is approximately U-shaped. A point and a line in a U shape.

Example below:

4 0

3 years ago

On a coordinate grid, both point (−4, −1) and (2, 6) point are reflected across the y-axis. What are the coordinates of the refl

Reptile [31]

Answer:

Step-by-step explanation:

So first, we know (-x,-y) reflected across y axis is (x,-y). and (x,y) reflected across y axis is (-x, y). So we can apply this to get (-4,-1) to (4,-1). (2,6) to (-2,6).

4 0

3 years ago

I need help on number 15

garri49 [273]

Okay, you now a triangle has 180º degrees and to add to 180º, you have to add all the numbers you have like this:
2x+x+90 (the box is 90º)=180º; add like terms like 2x+x
3x+90=180; cancel 90 by subtracting it and also subtract 90 from 180
3x=90;divide 3 to isolate x and also divide 90/3
x=30 :)

3 0

2 years ago

When 27x^2z/-3x^2z^6 is completely simplified , the exponent on the variable z is _____

-BARSIC- [3]

$\bf \cfrac{27x^2z}{-3x^2z^6}\implies -\cfrac{27}{3}\cdot \cfrac{x^2z}{x^2z^6}\implies -9\cdot \cfrac{x^2x^{-2}}{z^6z^{-1}}\implies -9\cdot \cfrac{x^{2-2}}{z^{6-1}}
\\\\\\
-9\cdot \cfrac{x^0}{z^5}\implies -9\cdot \cfrac{1}{z^5}\implies -\cfrac{9}{z^5}$

7 0

3 years ago

Read 2 more answers