Ask question

Ask question

All categories

2 years ago

5

A small town had a population of 960 people last year. The population grew to 1200 people this year. By what percentage did the

population grow? Please show how you did the problem :)

1 answer:

Katen [24]2 years ago

4 0

Answer:

25%

Step-by-step explanation:

$\frac{1200}{960} \times 100 \%= 1.25\% \\$

so it increases 25%

You might be interested in

If 3 3/4 lb. of candy cost $20.25, how much would 1 lb. of candy cost

olchik [2.2K]

Its cross-multiplication. 20.25 times 1 divided by 3 3/4 = 5.4 -(answer)

3 0

2 years ago

Simon can see two lights, light A and light B.

xz_007 [3.2K]

Answer:

2 Times

Step-by-step explanation:

Simon can see two lights A and B

Light A flashes every 15 seconds.
Light B flashes every 18 seconds.

First, we determine the next time both lights will flash together.

This is done by finding the Least Common Multiple of 15 and 18.

15=3X5

18= $2X3^2$

LCM of 15 and 18= $2X3^2X5=90$

This means that lights A and B will first flash together after 90 seconds.

Now, 240/90= $2.\overline{6}$ seconds

Therefore, the number of times more both light will flash together in the next 4 Minutes= 2 Times

3 0

2 years ago

Which relation is a function?

zloy xaker [14]

<span>{(–1, 3), (5, 3), (–6, 7), (9, 0)} is the correct answer.
I hope this helped!

</span>

3 0

3 years ago

What is the answer to this?

ch4aika [34]

Answer:

39

Step-by-step explanation:

41+x=80

x=39

5 0

2 years ago

Read 2 more answers

A company’s profit in dollars is modeled by the equation p(x) = –0.5x2 + 100x, where x represents the number of units sold.

serg [7]

Answers:

a. The company needs to sell 100 units to reach the maxmum profit.

b. The company's maximum profit is $5,000.

Solution:

a. How many unit does the company need to sell to reach the maximum profit?

p(x)=-0.5x^2+100x

This is a quadratic equation, and its graph is a parabola vertical (because the veriable "x" is square). Comparing with the general form:

p(x)=ax^2+bx+c; a=-0.5, b=100, c=0

a=-0.5<0 (negative), then the parabola opens downward, and it has a maximimun value (maximum profit) at its vertex.

We can find the abscissa of the vertex (units that the company needs to sell to reach the maximum profit using the following formula:

x=-b/(2a)

Replacing b by 100 and a by -0.5 in the formula above:

x=-100/[2(-0.5)]

x=-100/(-1)

x=100

The company needs to sell 100 units to reach the maximum profit.

b. What's the company's maximum profit?

To determine the maximum profit we substitute the value of "x" obrained in part "a" in the quadratic equation:

x=100→p(100)=-0.5(100)^2+100(100)

p(100)=-0.5(10,000)+10,000

p(100)=-5,000+10,000

p(100)=5,000

The company's maximum profit is $5,000.

6 0

2 years ago