Answer:
Eli's age = 42 years
Step-by-step explanation:
Let x be Eli's age and y be Cecil's age
So,
According to the statement given
x+y=60 eqn 1
Eli's age 6 years ago = x-6
Cecil's age 6 years ago = y-6
So according to the given statement
x-6 = 3(y-6)
x-6 = 3y - 18
x-3y = -18+6
x-3y= -12 eqn 2
Subtracting eqn 2 from eqn 1
x+y - (x-3y) = 60 - (-12)
x+y-x+3y = 60+12
4y = 72
y = 18
Cecil's age = 18 years
Putting y = 18 in eqn 1
x+18=60
x = 60-18
x = 42
Eli's age = 42 years ..
Hello!
Answer:
249
Step-by-step explanation:
83
3 x
___
249
Hope this helps! ~Pooch ♥
Answer:
- 5/11
Step-by-step explanation:
Which number is 1,000 less than 24,819 do 24,819-1000=23,819
Which number is 1,000 greater than 28,283 do 28,283+1,000=29,283 Answer choice B
The other questions are un readable
You need to re-look at number
9. The car went 4 meters in 4 seconds, so the speed would be 1 meter/sec.
10. To get an average you have to take all 3 data entries and add them together then divide by 3 (the amount of entries). In this one, they were trying to be a little tricky by saying 2 hours at 40 km each. The total is 3 hours, so we'll divide by 3 to get km/hour. Let's do it!
80 + 40 + 40 = 160
160/3 = 53 1/3 km/hour
