Prime numbers are numbers that can be divided without a remainder. So 2181 is divisible by 3 and 727 and there is no remainder.
Answer:
lacy = 8 jack= 24
Step-by-step explanation:
let x be lacys age
3x - 3 + x-3 = 14
3x+x -3 = 14 + 3 = 17
4x = 17 +3 = 20
x = 20/4 = 5
lacys age now = 5+3 = 8
jacks age now = 8 * 3 = 24
Note that
a² - b² = (a+b)(a-b)
i² = -1 by definition.
We want to factorize x² + 36 = x² + 6².
Consider the expression
x² - (6i)² = x² - (6²)(i²) = x² - 36i² = x² + 36
Because x² - (6i)² = (x + 6i)(x - 6i)
Therefore
x² + 36 = (x + 6i)(x - 6i)
Answer: (x + 6i)(x - 6i)
cups of brown sugar needed for only 1 cup of flour
<em><u>Solution:</u></em>
To make banana bread, Colin uses 
of a cup of brown for every 2 cups of flour
To find: Amount of brown sugar should Colin use to make a small batch with only 1 cup of flour
Let "x" be the amount of brown sugar needed for only 1 cup of flour
From given information,
This forms a proportion and we can solve the sum by cross multiplying
Thus cups of brown sugar needed for only 1 cup of flour
