Answer:
a = 1 1/15
Step-by-step explanation:
1/4 a = 4/15
Multiply each side by 4 to isolate a
4 * 1/4a = 4 * 4/15
a = 16/15
a = 1 1/15
Answer:
4 mph
Step-by-step explanation:
Travel time is proportional to distance and inversely proportional to speed. If c represents the speed of the current in miles per hour, an equation for the total trip time is ...
825/(29 -c) +825/(29 +c) = 58 . . . . . . hours travel time
825(29 +c) +825(29 -c) = 58(29 -c)(29 +c)
58c² -928 = 0 . . . . . . . rearrange to standard form
58(c -4)(c +4) = 0 . . . . factor
Values of c that satisfy this equation are 4 and -4. For the purpose here, we'll choose the positive solution.
The speed of the current is 4 miles per hour.
Answer:
10 euro's
Step-by-step explanation:
1000/100=10
10 euros=1000 yen
