MATHEMATICS
MIDDLE SCHOOL

Answer: First we substitute symbols for the words: 390=60%x#. Then we divide both sides by .60 (or 60%): 390/.60=650. 650=#. 390 is 60% of 650 :) I hope this helps and makes sense!

Answer: Solutions

Our next step will be to add 40% more to 390 (390 + 40%) and simplify to 650.

390 is 60% of 650

Our next step will be to add 40% more to 390 (390 + 40%) and simplify to 650.

390 is 60% of 650

HIGH SCHOOL

Find the slope of the line that passes through the points (-3, -20) and (13, 2).

Answer: 8/11

Step-by-step explanation:

-3-13= -16-20-2= -22-16÷ -22 =8/11Answer:

11/8

Step-by-step explanation:

Slope = (y2-y2)/(x2-x1)

= (2-(-20))/(13-(-3))

= (2+20)/(13+3)

= 22/16

= 11/8

MIDDLE SCHOOL

Is y= .75x + 2 proportional or non-proportional

Answer:

non-proportional

Step-by-step explanation:

it is non-proportional because it has a "b-value" or a y-intercept. proportional relationships are written in the form of y=mx. this equation is in y=mx+b form.

Answer:

proportional

Step-by-step explanation:

MIDDLE SCHOOL

What is the slope of this line segment?

The answer is 5. This can be found using the two points given ( (0,0) and (3,15) ) and using the slope formula (15-0 divided by 3-0)

HIGH SCHOOL

How do you solve the polynomial (4x to the third power) (-5x)

Multiply the 4 and 5, and add the exponents