Answer:
5x+17
Step-by-step explanation:
2(x+7)+3(x+1)
=2x+14+3x+3 you remove the bracket
=2x+3x+14+3 you collect like terms
=5x+17
7.5 %
Step-by-step explanation:
We by finding how far from the mean the 999 volume caps are, using z score;
Z = (x – μ) / σ
Z = (999 – 998) / 7
Z = 0.143
We use the z-table to find the confidence levels;
= 85%
= 0.85
Since we are finding proportion of bottles have volumes greater than 999
mL;
1 – .85 = .15
0.15/2 = 0.075
= 7.5%
Well you can round the numbers like, 368 would be 370 and the 231 would be 230 and then you could add them together as they are and then you can round the number then
The zeros of that expression are
- 1 + i√2
and
- 1 - i√2 .
Answer:
20%
Step-by-step explanation:
An equation is 14=x/100*70 or 14=(x%)*70, either one works
solve for x:
- 14=x/100*70
- 14/70=x/100 (Divide each side by 70)
- 1/5=x/100 (Simplify 14/70)
- 100/5=x (Multiply each side by 100 to isolate x)
- x=20 (Simplify 100/5)
- 20% (Rewrite as a percent)
hope this helps!!