Hello,
Here's my solution:
Let n = the lesser of the two consecutive even integers; so what will be a good way to represent the greater of the two consecutive even integers? I say n + 2.
Let's write the equation:
n = ((n+2)/2) + 10
I'll multiply both sides of the equation by 2 to eliminate the denominator, getting:
2n = 2[((n+2)/2) + 10]
This reduces to:
2n = n+2 + 20
Which can be further simplified to:
2n = n+22
Subtracting n from both sides we get:
n = 22
So n, the lesser consecutive even integer is 22. The greater consecutive even integer is 24.
Let's check this solution by substituting n = 22 into our original equation:
n = ((n+2)/2) + 10
22 = ((22+2)/2) + 10
22 = ((24)/2) + 10
22 = (12) + 10
22 = 22 - it checks!
Step-by-step explanation:
Let 5x, 3x and x be the shares of David, Malachy and Paul.
According to the given condition:
5x = x + 40
Hence, there are total 90 sweets
Answer:
2 hours and 24 minutes
Step-by-step explanation:
cynthia can wallpaper a room 4 hours with means in 1 hour she can wallpaper 1/4th of the room, her brother can wallpaper the same room in 6 hours so I'm 1 hour he can wallpaper 1/6 of the room.
It is 230,000 because the first 9 gets rounded up because the next number is above 5
If they drive an average of 60 miles per hour the last day it will take them 2.5 hours.
4 hours at 60 miles per hour = 4*60 = 240 miles
6 hours at 65 miles per hour = 6*65 = 390 miles
This is a total of 630 miles. There are 780-630=150 miles left; if they average 60 miles per hour, that would be 150/60 = 2.5 hours.