There are 12 men in the dance recital.
8x=32
X=4
3(4)=12
Let speed of the boat in still water = x miles per hour
Let speed of the current = y miles per hour
When water and current both flow in same direction then effective speed will be sum of both speeds that is (x+y)
now plug the given values in formula speed=distance/time
we get equation:
(x+y)=160/8
or x+y=20...(i)
When water and current both flow in opposite direction then effective speed will be difference of both speeds that is (x-y)
now plug the given values in formula speed=distance/time
we get equation:
(x-y)=160/40
or x-y=4
or x=4+y...(ii)
plug value of x into (i)
4+y+y=20
4+2y=20
2y=16
y=8
plug value of y into (ii)
x=4+8=12
Hence final answer is given by:
Speed of the boat in still water = 12 miles per hour
Speed of the current = 8 miles per hour
1 week = 7 days
Answer : Thomas spends $9.80 on food in one week.
Hope this helps. - M
Answer:
612
Step-by-step explanation:
Since Kelly had already 474 dollars in her checking account and added 138 more, 474+138=612
Answer:
161
Step-by-step explanation:
