Answer: Answer and explanation in pic
Step-by-step explanation:
C. 4x + y = 21
4(3) + 9 = 21
12 + 9 = 21
21 = 21
Yes to solve this problem you need to factor it. I would start by factoring the N out first. Hope this helps!
Answer:
68%
Step-by-step explanation:
85 divided by 125 = .68 * 100 = 68
We let x be the length (in minutes) of a certain science class. 65% of this period is spent with the experiment which lasted for about 52 minutes. Mathematically, this can be expressed as,
52 = (0.65)(x)
The value of x from the generated equation is 80. Thus, the science class is 80 minutes long.
