25%=0.25
24*0.25=6
24-6=18
18 pairs are not black
Answer:
choice b
Step-by-step explanation:
3.49
____ = 0.1396 ≈ 0.14 or 14 cents per ounce
25
4.79
____ = 0.10644444 ≈ 0.11 or 11 cents per ounce
45
During week 2, he could type 15 words per minute, at his fourth week, he could type 30. So 30-15=15. He could type 15 words faster on week 4 than he could at week 2.
Tip: whenever y equals a number, the line is horizontal and the slope is 0. if the number equals x, the line will be vertical and there is no slope.
5x + 5x +3x (like terms)
13x-60=180
180+60=240
240/13=18.4615
X=18.4615
I hope this is correct.
(There are so many different ways to do math problems like this) I hope I could help... sorry if I didn’t.
