Sagot :
[tex]x=amount\ of\ each\ coin. \\ .25x+.1x=1.4 \\ .35x=1.4 \\ x= \frac{1.4}{.35} \\ x=4\ of\ each\ coin. \\ 4\ quarters\ and\ 4\ dimes. \\ \boxed{8\ coins\ in\ total}[/tex]
4 quarters and 10 dimes.Because 4 quarter is a dollar and a dime is worth 10 cents.And 10 x 4 = 40