Answer:
51 DVDs
Step-by-step explanation:
Let the number of DVDs and CDs sold be x each.
<u>Initial</u>
Number of DVDs= 86
Number of CDs= 52
<u>After selling</u>
Number of DVDs= 86 -x
Number of CDs= 52 -x
Given that there are 3 times as many DVDs than CDs left,
86 -x= 3(52 -x)
<em>Expand:</em>
86 -x= 156 -3x
<em>Bring x terms to 1 side, constant to the other:</em>
3x -x= 156 -86
<em>Simplify:</em>
2x= 70
<em>Divide both sides by 2:</em>
x= 35
Amount of DVDs left
= 86 -x
= 86 -35
= 51
Answer:
the answer is a
Step-by-step explanation:
because 250 x 11% equals 27.5 and 27.5 x 2 equals 55. hope this helps
Answer:
the answer is C
Step-by-step explanation:
x2−162x2−9x+42x2+14x+244x+4
=4x3+4x2−64x−644x4+10x3−70x2−160x+96
=2x3+2x2−32x−322x4+5x3−35x2−80x+48
=2(x+1)(x+4)(x−4)(2x−1)(x+3)(x+4)(x−4)
=2x+22x2+5x−3
