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3 years ago

15

Suppose 1/4 of people surveyed support changing the school dress code to enforce uniforms. How many people would you have to sel

ect randomly, on average, in order to get 20 people who support the new dress code?

1 answer:

Molodets [167]3 years ago

6 0

Answer:

I'd say around eighty people. Hope that helps.

Step-by-step explanation:

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Write one problem using a dollar amputated of $420 and a percent of40% provide the solution to your problem

lianna [129]

Q- A $420 55' flat screen tv is on sale for 40%, what is the cost of the flat screen tv now?

A-168 the tv now cost $168 dollars

3 0

3 years ago

Dmitry [639]

Answer:

$8,000

Step-by-step explanation:

Let the store earned $x in December.

Therefore,

Money spent to buy new inventory $=\frac{1}{4} x$

Remaining money $= x - \frac{1}{4} x =\frac{3}{4} x$

Money used to pay bills $=\frac{1}{2} \times \frac{3}{4} x=\frac{3}{8} x$

Money still left over = $3,000

Total money earned in December $= \frac{1}{4} x+ \frac{3}{8} x+3,000$

$\therefore x= \frac{1}{4} x+ \frac{3}{8} x+3,000$

$\therefore x= \frac{2}{8} x+ \frac{3}{8} x+3,000$

$\therefore x= \frac{5}{8} x+ 3,000$

$\therefore x- \frac{5}{8} x=3,000$

$\therefore \frac{8x-5x}{8} =3,000$

$\therefore \frac{3x}{8} =3,000$

$\therefore x =3,000\times \frac {8}{3}$

$\therefore x =1,000\times 8$

$\therefore x =\$8,000$

Thus, total money earned in December is $8,000.

3 0

3 years ago

work it out "the equation 1.5r + 15=2.25r represents the number r of movies u must rent to spend the same amount at each movie s

Alex17521 [72]

Answer:

20

Step-by-step explanation:

Your equation is correct. To solve it subtract 1.5r from both sides and divide by the resulting coefficient of r.

15 = 0.75r

15/0.75 = r = 20

You must rent 20 movies for the costs to be the same.

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3 years ago

A shape is made of 9 right triangles of equal size and three identical rectangles. Each rectangle measures 7 mm wide and 3 mm hi

e-lub [12.9K]

Answer:

21

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

What is the y intercept of the graph y= -2x^2 -4x-3

Kitty [74]

the answer for this question is -3

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3 years ago