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3 years ago

A school wants to raise $2,500 to support its music program. If it has met 20% of its goal so far, how much money has it raised?

Mathematics

2 answers:

Kamila [148]3 years ago

6 0

Answer:

They have raised $500 so far

Step-by-step explanation:

Multiply $2500 by 20% (aka 0.2) and you get $500

(They need to raise another $2,000 still)

Aleonysh [2.5K]3 years ago

5 0

Answer:$500

Step-by-step explanation:

We could translate the world problem,to get an equation.

20% “of” 2,500. The “of” means that you have to multiply. Convert the percent to get 0.20, and multiply it by 2,500.

0.20*2,500=500

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Estimate the quotient for 627 ÷ 9. explain how you found your awnser

Nutka1998 [239]

69.7

Step-by-step explanation:

627 ÷ 9

=69.66666666666666

approximately

69.7

6 0

2 years ago

Read 2 more answers

Please help me out. I don’t understand this problem.. An equation of a line through (-7,-10) which is perpendicular to the line

nordsb [41]

Answer:

The Equation:

$y = \frac{1}{3}x - \frac{23}{3}$

The y-intercept:

$-\frac{23}{3}$

Step-by-step explanation:

Things you need to know:

Perpendicular mean opposite slope.

Need to know point slope form of a linear equation $y - y_1 = x(x - x_1)$

Ok, with that out the way, lets get started!

From the equation y = -3x + 2 we can see the slope, which is -3. We are asked to find an equation that is perpendicular to that slope so that means we need an opposite slope. To turn this slope to an opposite slope flip it and change the sign

-3 = $\frac{-3}{1} = \frac{1}{3}$

Now that we have our opposite slope, which is $\frac{1}{3}$ , we can find the equation the problem is asking us to solve.

We do this by using the point (-7, -10) and our new slope, which is $\frac{1}{3}$ and by using $y - y_1 = x(x - x_1)$

Insert our point and slope into $y - y_1 = x(x - x_1)$ and solve for y

$y - y_1 = x(x - x_1)$

$y - (-10) = \frac{1}{3}(x - (-7))$

$y + 10) = \frac{1}{3}(x + 7))$

Work on the right side of the = sign

Distribute 1/3 to x and 7

$y + 10 = \frac{1}{3}(x + 7))$

$y + 10 = \frac{1}{3}x + \frac{7}{3}$

Bring the 10 over to the right side by adding a -10

$y + 10 -10= \frac{1}{3}x + \frac{7}{3} - 10$

$y = \frac{1}{3}x + \frac{7}{3} - 10$

Do the math for $\frac{7}{3} - 10 = -\frac{23}{3}$

$y = \frac{1}{3}x - \frac{23}{3}$

We are done.

The Equation:

$y = \frac{1}{3}x - \frac{23}{3}$

The y-intercept:

$-\frac{23}{3}$

7 0

3 years ago

What are the restrictions on the domain (u*v)(x)

Zepler [3.9K]

Answer: x≠0 and x can not be any value for which u(x) = 2

Step-by-step explanation:

According to the question,

The domain of the function u = R - {0}

Thus if x is the element of the domain of the function u

Then , x ≠0

(v*u)(x) = v[u(x)]

Since, The domain of the function v = R - {2}

⇒ u(x) ≠ 2

⇒ Second Option is correct.

5 0

3 years ago

At sunset, the temperature was 4 degrees. Then at sunrise the next morning, it was -7 degrees. What is the difference between th

maw [93]

It's 11 degrees.

Since you have to do 4 - -7, you can leave the seven, change the subtraction sign to an addition, and make -7 the opposite (7), the equation would be 4 + 7, making it 11 degrees.

6 0

3 years ago

Find the surface area of the cone.Use 3.14 for pi and round your answer to the nearest hundredth

atroni [7]

Answer:

145.0 cm^2

Step-by-step explanation:

Given data

r= 4cm

l= 5cm

h=??

Apply Pythagoras theorem to find h we have

h^2= 4^2+5^2

h^2= 16+25

h^2= 41

h=√41

h= 6.4cm

Substitute into the formula for the surface area of cone

A=πr(r+√h^2+r^2)

A=3.14*4(4+√6.4^2+4^2)

A=12.56(4+√40.96+16)

A=12.56(4+√56.96)

A=12.56(4+7.547)

A=12.56*11.547

A=145.0 cm^2

4 0

3 years ago