Answer:
c>=2
Step-by-step explanation:
-4c>=22-30
c>=(22-30)/-4
c>=-8/-4
c>=2
Answer:
Neil is 28yrs and his brother is 42yrs old
Step-by-step explanation:
Let r = Neil's brother's age at birth time
2r = Neil's age now
This means that his brother's current age is 3r
So when Neil = 3r old
His brother = 4r old
3r + 4r = 98
7r = 98
r = 14
So their ages now
Neil's brother = 3*14= 42
Neil = 2*14= 28.
These r ez just use a calculator
So we are trying to find what multiplied by 10 is 4000. To figure that out, you can just divide 4000 by 10 to get 400. 400 x 10 = 4000.
You can also see from the second line that it says (50 x 8) x 10. So the unknown number is 50 x 8, which is also 400.