9: the answer is 4 to 13
10: the answer is 6 to 13
Answer:14
Step-by-step explanation:
A nickel is 5 cents (20% of dollar)
and a quarter is 25 cents (25% of dollar)
We have given a pile of 42 coins worth of $4.90
Let x be the no nickels and
y be the no of quarter
therefore
x+y=42 -----1
+
=4.90 ---2
Solving
we get
x=14 & y=28
Therefore no of nickels is 14 & no of quarters is 28
Answer:
A. 5x - 1
Step-by-step explanation:
3x - 2
+ 2x + 1
------------
5x-1