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vesna_86 [32]
4 years ago
8

Which class has 28% 28% boys? Clear Check Class A: 3 3 out of 30 30 Class B: 28 28 out of 40 40 Class C: 1 1 out of 28 28 Class

D: 14 14 out of 50 50
Mathematics
2 answers:
konstantin123 [22]4 years ago
7 0
Class A: 3 out of 30 =  3 / 30 = 0.1 = 10%

Class B: 28 out of 40 = 28 /40 = 0.7 = 70%

Class C: 11 out of 28 = 11 / 28 = 0.39 = 39%

Class D: 14 out of 50 = 14 / 50 = 0.28 = 28%

 The answer is Class D


Wittaler [7]4 years ago
7 0

Answer:

Class D has 28% boys

Step-by-step explanation:

50 x 28% (or .28) you get 14

First, you would do number of boys divided by total students in class for A,B,C,D.

Then you will find out D is .28 and move two decimal places to the left and BAM! it's 28%.

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Jury duty is where you have to server your duty being on a jury for a court case. On a jury duty, you vote if you think the person on trial is guilty or not.

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3 0
3 years ago
PLZ HELP ASAP!!!!!!!,
lilavasa [31]
The answer to your question is 10 seconds. I know this because:

distance divided by speed=time
let t=time
t=2*6(30/36)=10
t=10
So, it took Boris a total of 10 seconds to run up the out of service elevator.

Hope this helps!
8 0
4 years ago
Read 2 more answers
Select the correct answer.
jenyasd209 [6]

The expression which represents the other factor, or factors, of the given polynomial is option (C) (2x-1)(x+1)

A cubic equation in algebra is a one-variable equation of the form ax3+bx2+cx+d=0 where an is nonzero. The roots of the cubic function defined by the left side of this equation are the solutions to this equation.

Given expression 2x³-3x²-3x+2 whose one of factor is (x-2)

We have to find second factor of given equation

First we will be rational root theorem to given expression so will get following expression:

\left(x+1\right)\frac{2x^3-3x^2-3x+2}{x+1}

So one factor is (x-1) and now simplifying \frac{2x^3-3x^2-3x+2}{x+1}  we get              2x² - 5x +2 and the factor of 2x² - 5x +2 will be (2x-1)(x-2)

Hence the expression which represents the other factor, or factors, of the given polynomial is option (C) (2x-1)(x+1)

Learn more about Polynomial here:

brainly.com/question/4142886

#SPJ10

4 0
2 years ago
The low temperature on Monday was 16°F. On Tuesday, the low was 18°F cooler. On Wednesday, the low temperature was –4 times Tues
drek231 [11]

Answer:

-4(16-18), [16 + (-18)](-4)

Step-by-step explanation:

Given: The low temperature on Monday was 16°F. The low temperature on Tuesday was 18°F cooler. The low temperature on Wednesday was –4 times Tuesday’s temperature.

To find: expression that can be used to describe the low temperature on Wednesday

Solution:

Temperature on Monday = 16°F

So,

Temperature on Tuesday = (16-18)\°F

Temperature on Wednesday = -4(16-18)\°F

So, expression -4(16-18)=(16-18)(-4) can be used to describe the low temperature on Wednesday.

Also,

(16-18)(-4)=[16 + (-18)](-4)\,\,\left \{\because  (a-b)=\left [ a+(-b) \right ] \right \}

So, expression [16 + (-18)](-4) also represent temperature on Wednesday.

3 0
3 years ago
Read 2 more answers
Noah earns $16 per hour babysitting. At his last babysitting job, he received a tip of
nalin [4]

Answer:

He must work for 115 hours to save at least $1900.

Step-by-step explanation:

The equation that you'll use is 65+16x=1900, with x being hours. I found the answer by using 65+16(115)=1905, which is the closest number you'll get before starting to use half hours and such.

4 0
3 years ago
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