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2 years ago

30 percent of the class were chewing gum.12 were chewing gum how many were in the class

1 answer:

7 0

Alright. For the first one, we must think, thirty percent of what number is equal to twelve? We can right that in equation form as

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Please help thank you

nikdorinn [45]

Answer:

See explanation

Step-by-step explanation:

$(x^2+9x+10)(x-2)= \\\\x^3-2x^2+9x^2-18x+10x-20= \\\\x^3+7x^2-8x-20$

Jimmy is incorrect.

Using long division, you can find that the real answer.

First, subtract $x^2(x-2)$ from the original expression, leaving you with $9x^2+2x-40$ .

Next, subtract $9x(x-2)$ from the expression, leaving you with $20x-40$ . Finally, subtract $20(x-2)$ from the expression, leaving you with a remainder of 0. This means that the real quotient is $x^2+9x+20$ . Hope this helps!

6 0

3 years ago

Given the points A and BThe coordinates of point A = ( 3 , 1 )The coordinates of point B = (-1 , -1)The midpoint of AB = ([?],[

mr Goodwill [35]

Given the points A and B

The coordinates of point A = ( 3 , 1 )

The coordinates of point B = (-1 , -1)

The midpoint of AB, is the point C

C will be calculated as following :

$C=\frac{A+B}{2}=\frac{(3,1)+(-1,-1)}{2}=\frac{(3-1,1-1)}{2}=\frac{(2,0)}{2}=(1,0)$

so, the midpoint of AB = (1 , 0 )

3 0

1 year ago

Factor completely 4x2 - 121

anzhelika [568]

Answer:

(2x+11)x (2x-11)

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

Find the gradient of this line. Use gradient = rise/run

Marysya12 [62]

Step-by-step explanation:

the gradient of the line = 2 units/ 3 units = 2/3

5 0

2 years ago

2x + y = 9<br>3x - y = 16

snow_tiger [21]

Answer:

X=7 y=-5

Step-by-step explanation:

2x+y=9

3x-y=16

use the process of elimination finding out what works for one problem and try it on the other until they both work

7 0

2 years ago

Read 2 more answers