Answer:
the answer would be 56 minutes.
Step-by-step explanation:
7 x 40 = 280
5n = 280
n = 56
Answer:
The boiling point of water is between 84 °C and 88 °C when the elevation is between 3.4 and 4.6 km.
Step-by-step explanation:
You want x such that ...
84 ≤ B(x) ≤ 88
84 ≤ 100 -3.5x ≤ 88 . . . . substitute for B(x)
-16 ≤ -3.5x ≤ -12 . . . . . . . .subtract 100
4.6 ≥ x ≥ 3.4 . . . . . . . . . . .divide by -3.5; this reverses the inequality
Answer: 3/8
Step-by-step explanation: 7/8 - 1/2= (7*2)-(1*8)
--------------- = 6/16 6 divided by 2 and then 16 divided by 2= 3/8
^8*2
