2 years ago

20% of the middle school students decided not to go skiing. How many middle school students are there if 40 stayed in the lodge?

Mathematics

2 answers:

victus00 [196]2 years ago

8 0

Answer:

Step-by-step explanation:

s(20/100)=40

20s=4000

s=200

So there are a total of 200 students.

Anika [276]2 years ago

8 0

Answer:

There are 200 middle school students

Step-by-step explanation:

The equation for this question can be: 40 is 20% of what. This can be simplified to 40 = 0.2x and then to get x by itself you divide 40 by 0.2 which is 200.

You might be interested in

Which equation represents a line perpendicular to the line shown on the graph?

Vadim26 [7]

Answer:

See description below.

Step-by-step explanation:

To choose the correct equation, find the slope of the line on the graph. Identify two points on the line. Then subtract to find their rate of change using the slope formula.

$m=\frac{y_2-y_1}{x_2-x_1}$

When you know the slope, find the negative reciprocal. For example, if the slope is 2/1 then the negative reciprocal is -1/2. This is the slope of a perpendicular line to a line with slope 2. Choose the equation which has this same slope.

Example:

y = 2x -1

y= -1/2 +5

4 0

2 years ago

Write the equation of a line with slope 3 and y-intercept −3.

natta225 [31]

The equation would be y = 3x-3

4 0

2 years ago

Read 2 more answers

Evaluate when x = -3 and y= -1:<br><br><br> x-xy=

LenKa [72]

-3-(-3)(-1)= 0, so 0 is the solution

5 0

2 years ago

Read 2 more answers

Yolanda has finished 45 percent of her homework and she has finished 27 problems. How many problems was Yolanda assigned

masya89 [10]

If 45 percent of the homework is only 27 problems, she needs to figure out this:

What is 47 percent of 60?
or
47% x 60

Which is 27.

So, Yolanda was assigned 60 problems.

6 0

2 years ago

HELPPP:$

viktelen [127]

Answer:

Are 480/40 and 300/25 proportional? Cross products 48025 = 1200 and 300400 = 1200, so their salaries are proportional.

So in conclusion the answer is true.

Step-by-step explanation:

3 0

2 years ago

Read 2 more answers