-12 -72
-10
3. Which situation best represents the equation x - 15 = 60?
A Sandy collects sea shells. She had 60 shells, but then she gave away 15. How many does she have left?
BM Win is 15 years younger than his brother. His brother is 60 years old. How old is Mr. Win?
C. The school band is selling raffle tickets. They have already sold 15 tickets and there are 60 left.
How many rame tickets did they start with?
D. Daniela measures a 15 inch piece of rope and attaches it to another piece of rope. Together, the two
ropes are 60 inches in length. How long was the piece of rope that she attached?
4. An equation is modeled below using algebra tiles. Which value of x makes the
equation true?
1

ok

step-by-step explanation:

(x3 + 6x2 + 2x - 6) • (x - 1)

step-by-step explanation:

polynomial long division :

3.2     polynomial long division

dividing :   x4+5x3-4x2-8x+6

                              ("dividend")

by         :     x-1     ("divisor")

dividend     x4   +   5x3   -   4x2   -   8x   +   6

- divisor   * x3     x4   -   x3            

remainder         6x3   -   4x2   -   8x   +   6

- divisor   * 6x2         6x3   -   6x2        

remainder             2x2   -   8x   +   6

- divisor   * 2x1             2x2   -   2x    

remainder               -   6x   +   6

- divisor   * -6x0               -   6x   +   6

remainder                     0

quotient :   x3+6x2+2x-6   remainder:   0

0.85% : )

step-by-step explanation: