Question 100798
1.) 50(70%)+x(100%)=(50+x)(75%) ... 35+x=37.5+.75x ... .25x=7.5 ... x=30


2.) let x=pennies or dimes ... 1x+10x+25(44-2x)=437 ... 1100-39x=437 ... 663=39x ... x=17 ... 44-2x=10