Answer:
7.5 more push-ups
Step-by-step explanation:
From the dot plot attached :
Last month mean :
Σfx/Σf
Σfx = [(10*2)+(15*2)+(25*3)+(35*1)] = 160
Σf = (2 + 2 + 3 + 1) = 8
Mean = 160 / 8 = 20
This month mean :
Σfx/Σf
Σfx = [(10*1)+(15*1)+(25*1)+(30*3)+(40*2)] = 220
Σf = (1 + 1 + 1 + 3 + 2) = 8
Mean = 220/8
Mean = 27.5
Difference in mean :
This month mean - Last month mean
27.5 - 20
= 7.5
Because of the low amount of dollars used, it is easier to use cents. 500 cents will buy you 250 text messages. You now need to find how much it cost to do one text message. Divide the price for 250 by the amount, and you will find that each text cost 2 cents. Now multiply by the 300 texts to find the total amount. 2 cents times 300 messages is 600 cents, or $6.
$6
For the first question part a. The volume of a round cake pan is V=πr^2h or 76.97. The volume of the rectangle pan is V=whl or 108. The rectangular pan has a larger volume.
For part b of the second question, for the rectangular cake you do. A=2(hl+hw)+wl or 114. For the circular cake it is 2πrh+2πr2-38.48 or 82.47.
The second question you asked is easy. The answer is 3, 4, 7, 9, 10, 11, 13
Answer:
b
Step-by-step explanation:
