16% of 231 is 36.80
16% + 84% = 100%
36.80+ 231 = $267.80
Ans = $267.80
Basically find the prime numbers that multiply to make that number or the base parts so
90=2 times 45
45=3 times 15
15=3 times 5
prime factor=2 times 3 times 3 times 5
You have to use a system. the first would be x + y = 12 since she has 12 coins. the other equation would be 0.05x + 0.1y = 0.95 (an easier way is 5x + 10y = 95 if you clear it). now you just solve using substitution or elimination.
Answer:
-14.4, -14 1/5, -14.04
Step-by-step explanation:
1/5=0.2
-14..04 is closest to 0 on a number line
the more i think about it the more i doubt myself but i hope its right. pretty sure it is.
