Answer:
44
Step-by-step explanation:
x = 4 and y = 12.
5х² - 3у
20x - 3y
80 - 36
44
23000 times 4=92000 hope This helps! Merry Christmas!
Answer: The equations are
6x - 6y = 9
4x + 4y = 9
Step-by-step explanation:
Let x represent the speed of the row boat in still water.
Let y represent the speed of the current.
Dana can travel 9 miles in her rowboat in 6 hours against the current. This means that the total speed at which she travelled is
(x - y) miles per hour.
Distance = speed × time
Distance travelled against the current is expressed as
9 = 6(x - y)
6x - 6y = 9
With the current, it takes 4 hours to row the same distance. This means that the total speed at which she travelled is
(x + y) miles per hour.
Distance travelled with the current is expressed as
9 = 4(x + y)
4x + 4y = 9
Answer:
7,230,000,000 = 7.23 x 10 to the 9th power. 0.0000865 = 8.65 x 10 to the negative 5th power.
Step-by-step explanation:
Answer:
3628800
Step-by-step explanation:
If there are 10 skaters, it would go from 9, 8, 7, and so on...
So..
10 x 9 x 8 x 7 x 6 x 5 x 4 x 3 x 2 x 1
= 3628800
