MATHEMATICS HIGH SCHOOL

There are 30 people in a class of which 30% are males. How many FEMALES are in the class?_____

Answers

Answer 1
Answer:

To find the number of females in the class, we can start by calculating the number of males.

Given that 30% of the class are males, we can calculate it as follows:

Number of males = 30% of total number of people

              = 30% of 30

              = (30/100) * 30

              = 9

Since we know that the total number of people in the class is 30, we can find the number of females by subtracting the number of males from the total:

Number of females = Total number of people - Number of males

                = 30 - 9

                = 21

Therefore, there are 21 females in the class.  

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Jennifer cut a board 2 m long into two pieces. one piece is 24 m shorter than the other. find the length of each piece.. Piz help me!!!!!!!!!!!

Answers

If its 24cm then this is the answer:
If its 24cm then the answer is:

2 m = 200 cm cut into 2 pieces of length x and y
x + y = 200
but 1 piece is 24 cm shorter than the other

i.e. x = y -24 substitute this into the above equation you get

y - 24 + y = 200
2y = 224
y = 112
x = y - 24
x = 112 - 24
x = 88

So 2 pieces are 88 cm and 112 cm in length

To check its correct 112 + 88 = 200 cm = 2m
And 112 - 88 = 24 cm 

Solve the equation for the variable. Make sure your answer is in simplest form.30x + 18 = 35 - 4x
x = (?)/(?)
Enter the numbers that belong.​

Answers

Answer:

x = (1)/(2)

Step-by-step explanation:

30x+18=35−4x

First of all using the addition property add 4x to both sides

That's

30x + 4x + 18 = 35 + 4x - 4x \n 34x + 18 = 35

Next using the subtraction property subtract 18 from both sides to make 34x stand alone

We have

34x + 18 - 18 = 35 - 18 \n 34x = 17

Divide both sides by 34

That's

(34x)/(34) = (17)/(34)

We have the final answer as

x = (1)/(2)

Hope this helps you

How many tablespoons in a cup

Answers

there are about 15 tablespoons in a cup

(-3) to the 3rd power

Answers

Answer:

-27

Step-by-step explanation:

(-3)³ = -3 · -3 · -3 = 9 · -3 = -27
Your answer would be -27

Simplify -2xy+3x-2xy+3x

Answers

-2xy-2xy= -4xy
3x+3x=6x
-4xy+6x

Answer:

Step-by-step explanation:

4xy+6×

Factor -4d^3 + 28d^2 - 4d

Answers

$\begin{align} -4d^3+28d^2-4d&=(-4d* d^2)+(-4d*-7d)+(-4d* 1)\n&=\boxed{-4d(d^2-7d+1)} \end
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