42 is 5% of 840.Calculate it like this 42÷840×100,just try other question it will nelp you.
Answer:
Step-by-step explanation:
Let t represent the time driving at 50 mi/h. Then her total distance driven (in miles) is ...
distance = speed · time
290 = 50t + 45(6-t)
20 = 5t . . . . . . . . . . . subtract 270, collect terms
4 = t . . . . . . divide by the coefficient of t
Taylor drove 4 hours at 50 miles per hour, then 2 hours at 45 miles per hour.
Answer:
Step-by-step explanation:
805 - i set up an equation:
700(1.15)
1.15 since a 15% increase is basically 700 * 0.15 + 700, equal to 1.15 * 700
= 805
hope that helped!! :)
940 is the answer because 6 rounds up
