Answer:
day 540
Step-by-step explanation:
He increases his number of situps by 2 each day meaning on day 1 he'd do 2 extra, on day 2 he'd do 4 extra, on day he'd do 6 extra etc. We can show this by saying +2x where x is the day he is on. Then since he started with 20 we have to add 20 so it would be 20+2x. We want to know what day it is when he does 1100 situps so we can set our equation equal to 1100 and solve for X which is the day it would be.
20+2x=1100
2x=1080
I hope this helps and please don't hesitate to ask if there is anything still unclear!
x=540
Answer:
The correct answer is C.
Step-by-step explanation:
percentile is represented as the value of probability in the norma distribution.
We look for a z-value with a left-tail of 0.67.
z=0.44
where,
M: mean
SD: standar deviation
x=z×SD+M=0.44×0.3+M=M+0.132
The diameter of an orange at the 67^th percentile is 0.132 inch above the mean.
Answer:
Step-by-step explanation:
Length of the bridge = 190 m = 190*100 = 19000 cm {100cm = 1m}
Length of each pace of Robert = 80 cm
Minimum number of full paces = 19000/80
= 237.5
= 238 {because full paces}
18+8/4x2
18+8/8
18+1
PEMAS
parentheses,
Answer:
Step-by-step explanation:
