Answer:
f = 4n
f = n+27
Fred is 36 years old and Nathan is 9 years old.
n = 9
Step-by-step explanation:
Answer:
t = 0.53 hr
Step-by-step explanation:
We write expressions for the distances walked by these two people, sum them up and set the sum equal to 4 miles:
(3.5 mph)(t) + (4mph)(t) = 4 mi
Combining these terms:
(7.5 mph)(t) = 4 mi
4 mi
Solving for t: t = ---------------- = 0.53 hr
7.5 mph
Mark spent 11/12 of an hour doing both math and english homework
Answer:
Step-by-step explanation:
Mean is just another word for average. To find the average, add up all the values then divide by the number of values.
There are 7 values in the first data set. The average is:
(3 + 4 + 6 + 4 + 3 + 1 + 4) / 7 = 25/7 ≈ 3.57
There are 7 values in the second data set. The average is:
(6 + 7 + 2 + 4 + 5 + 5 + 3) / 7 = 32/7 ≈ 4.57
So we do simple addition and get
81,900,000
if you mean simplest form as in scientific notation then
scientfic notation means (a number between 0 and 10)times 10^xpower so
8.19 times 10^7 or on online test
8.19e+07