Answer:
6
Step-by-step explanation:
2 times the difference of a number and 1 = 4 plus that number
In other to express the word problem Mathematically ; let the number = x
2(x - 1) = 4 + x
Expand
2x - 2 = 4 + x
Collect like terms
2x - x = 4 + 2
x = 6
Hence, the number is 6
127 minus 55 = 72
72 divided by 12 = 6
He can buy 6 shirts.
Given:
2/3 liter of solution.
1/2 of the solution is used.
Find how much the solution is used for the experiment.
We simply multiply the 2 fractions.
2/3 liters * 1/2 = 2*1 / 3* 2 = 2/6
2/6 is simplified to 1/3
1/3 liter of solution was used in the experiment.
