Answer:
The new mean is 76.2
Step-by-step explanation:
Given
Given
Old mean = 71.3
Every observation is increased by 4.9.
Let the data set has N entries, then
The new mean would be
(71.3 *N + 4.9*N)/N
The new mean = 71.3 + 4.9 = 76.2
Answer:
<u><em>x=11</em></u>
Step-by-step explanation:
-31+4x=-2x+35
+31
4x=-2x+66
+2x
6x=66
66/6
Answer:
It didn't
Step-by-step explanation:
This is because the coupon adds them for free, this means that one week she got 15 instead of 12. This had no effect on the cost of her perscription because it was free.
Answer: C
Step-by-step explanation:
Length: 6in
Width: 8in
Height: 9in
![A=2(wl+hl+hw)\\A=2[(8in)(6in)+(9in)(6in)+(9in)(8in)]\\A=2(48in^2+54in^2+72in^2)\\A=2(174in^2)\\A=348in^2](https://tex.z-dn.net/?f=A%3D2%28wl%2Bhl%2Bhw%29%5C%5CA%3D2%5B%288in%29%286in%29%2B%289in%29%286in%29%2B%289in%29%288in%29%5D%5C%5CA%3D2%2848in%5E2%2B54in%5E2%2B72in%5E2%29%5C%5CA%3D2%28174in%5E2%29%5C%5CA%3D348in%5E2)
