3 years ago

In a hall, there are 75 chairs. Out of these 60% are plastic and 40% are metal. Find the number of chairs of each type ?

Mathematics

2 answers:

Ivahew [28]3 years ago

8 0

Plastic=45 metal =30

poizon [28]3 years ago

4 0

Answer:

plastic = 45

metal = 30

Step-by-step explanation:

You might be interested in

"Which of the following is the graph of an arithmetic sequence whose first term is 0 and whose common difference is 4?

Vesna [10]

The graph should start at zero, and go up four for every number

5 0

3 years ago

Alex buys 24 apples from the supermarket. When he gets home, he finds that 6 apples are bad. What percentage of the apples are b

Masteriza [31]

The percentage of apples that are bad is 25%. This is because 25% of 24 is 6. I hope this helped!

5 0

3 years ago

What the answer is ansjjfjcjcjjcjcjc

alukav5142 [94]

The answer is 75! Explanation: Use the distance formula:)

8 0

3 years ago

The functions f (x) = 1/2x-3 and g(x) = -2x+ 2 intersect<br> at x = -2. True or false?

Norma-Jean [14]

9514 1404 393

Answer:

False

Step-by-step explanation:

f(-2) = (1/2)(-2) -3 = -1 -3 = -4

g(-2) = -2(-2) +2 = 4 +2 = 6

The function values are not the same at x=-2, so the graphs do not intersect there.

The graphs intersect at x=2.

4 0

3 years ago

A ball with mass m kg is thrown upward with initial velocity 28 m/s from the roof of a building 17 m high. Neglect air resistanc

Nutka1998 [239]

a. At its maximum height, the ball has zero vertical velocity, so

$-\left(28\dfrac{\rm m}{\rm s}\right)^2=2(-g)(y_{\rm max}-17\,\mathrm m)$

$\implies y_{\rm max}=57\,\mathrm m$

b. The ball's height in the air $y$ at time $t$ is given according to

$y=17\,\mathrm m+\left(28\dfrac{\rm m}{\rm s}\right)t-\dfrac g2t^2$

Solve for $t$ when $y=0$ :

$17+28t-4.9t^2=0\implies t\approx6.3\,\mathrm s$

3 0

3 years ago