Answers

  • Brainly User
2016-03-13T20:40:19+08:00
0.10n = 0.20n - 2
0.20n - 0.10n = 2
0.10n = 2

0.10n/0.10 = 2/0.10
n = 20

0.80 (20) = 16

ANSWER:  The number is 20.  80% of 20 is 16.
0
What is 4 there?
What is the algebraic expression for that?
0.20 x 20 (the value of n) = 4. Please check my equation to solve for n. 0.10 x n = 0.20 - 2. Instead of n, write the value of n which is 20. You'll find that they are equal. It means that the solution is conditional, meaning only one solution for n, which is 20. The algebraice expression is the equation I have derived from thethe given statement (the problem you posted).
Thanks po..yoir so enuis
Thanks po.your so genius po.