Answer: 43/19
Step-by-step explanation:
4x−2+3(5x−2+7)=56
Step 1: Simplify both sides of the equation.
4x−2+3(5x−2+7)=56
4x+−2+(3)(5x)+(3)(−2)+(3)(7)=56(Distribute)
4x+−2+15x+−6+21=56
(4x+15x)+(−2+−6+21)=56(Combine Like Terms)
19x+13=56
19x+13=56
Step 2: Subtract 13 from both sides.
19x+13−13=56−13
19x=43
Step 3: Divide both sides by 19.
19/19x=43/19 thus the answer is 43/19
Me mean changes to 58 and the median turns to 56
(0.0974, 0.1226)
Step-by-step explanation:
We first find the sample proportion;
255/ 2373
0.11
The Z value for a 95% confidence interval is 1.960
Therefore;
0.11 +- 1.96 * √ (0.11(1 – 0.11))/2373
0.11 +- 1.96 * 0.00642
0.11 +- 0.0126
= 0.1226
= 0.0974
(0.0974, 0.1226)
60 ≥ 35 + 5t
<u>-35 </u><u> </u><u>-35 </u>
<u>25</u> ≥ <u>5t</u>
5 5
t≤5
his mistake was that he used ≤ for at least instead of using ≥. so at end, when I solved, I saw that Sven should spend 5 minutes or less on each scale.