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vovikov84 [41]
3 years ago
5

If 8 out of 20 students in a class are boys,what percent of the class is made up of boys

Mathematics
1 answer:
lara31 [8.8K]3 years ago
3 0

Answer:

40%

Step-by-step explanation:

First, divide 100 by 20. You do this because you need something out of 100 to equal a percent. (Example- 50 out of 100 is 50%)

Next you need to take the number you got from dividing (5) and multiply that with 8. This leaves you with 40/100 or 40%.

Hope this helps!

-Coconut;)

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Susan took out a personal loan for $3,500 at an interest rate of 13% compounded monthly. she made arrangements to pay the loan o
Nadya [2.5K]

Susan's monthly payment will be $117.93.

We have Susan take out a personal loan for $3,500 at an interest rate of 13% compounded monthly.

P=3500

r=30%

t=3

<h3>What is the amortization formula?</h3>

A = \frac{P(\frac{r}{12} )}{(1 -(1 +r/12)^{(-12t)}}

Where A is the payment,

P= principal,

r =the annual interest rate

t is the number of years.

use the given value in the formula we get

A = \frac{3500(0.13/12)}{(1 -(1 +0.13/12)^{-36} }

A=117.9288

A= 117.93

Susan's monthly payment will be $117.93.

To learn more about the monthly payment visit:

brainly.com/question/25109150

5 0
2 years ago
Evaluate the following if k=0.5, n=-3, and p=-2: K+n(p^2)​
ivann1987 [24]

Answer:

-11.5

Step-by-step explanation:

K + n( {p}^{2} ) \\  \\ plug \: K = 0.5, \: n =  - 3, \: p =  - 2 \\  \\ K + n( {p}^{2} )  \\  \\  = 0.5 + ( - 3) \{ {( - 2)}^{2}  \} \\  \\  = 0.5 - 3 \{ 4 \} \\  \\  = 0.5 - 12 \\  \\  =  - 11.5

5 0
3 years ago
Given the proportional steel cost, how much do 200 pounds of steel cost?
kotegsom [21]

Answer:

Your answer is B, 150

Step-by-step explanation:

If we look at the chart it says 160 pounds of steel is 120, so for example if we start from 40 we will have 30, so every time we add 40 pounds 30$ are added, meaning that 160+40=200, 120+30= 150, Thus B or 150 is our answer.

3 0
3 years ago
Read 2 more answers
a house on the market was valued at 446000 after several years of value increased by 15% by the how much did the house value inc
olga_2 [115]

Answer:

the house will have gained $66,900$ worth of value putting the house worth at $512,900$

Step-by-step explanation:

446,000  ➗  100 X  15 = 66,900

446,000 + 66,900 = 512,900

hope this help if you need any more help P.M. me.

6 0
3 years ago
X+y=10 and 2x+4y=30<br>What are the steps to solve this equation?
Ronch [10]

Answer:

x=5 and y=5

Step-by-step explanation:

You "plug" one equation into the other, to get a new equation that only has one variable (x or y), then you can simplify that and have your answer.

So let's plug the first into the second:

First, we convert the first equation into an x=... form. For this one, this means moving the +y to the other side:

x = 10 - y

Now we substitute 10-y for x in the second equation:

So 2x+4y=30 becomes:

2(10-y) + 4y = 30

And simplify that:

20 - 2y + 4y = 30

20 + 2y = 30

2y = 30-20

2y = 10

y = 5

This is the first answer! If we put this into the first equation, we get:

x = 10 - 5 = 5

Now we have both answers, x=5 and y=5

6 0
3 years ago
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