6 units Foo
Explanation
Cause it’s just 6 units
3 is the max number of games she could buy
75-28 leaves 47 left divide by 15 per game
Set it up as a proportion problem. $2.10 is to x pounds as $3.50 is to 1 pound
=$2.10/x pounds= $3.50/1 pound
Cross multiply
=($2.10 * 1)=($3.50 * x)
=2.10=3.50x
Divide both sides by 3.50
0.6= x
x= 0.6=6/10= 3/5
He can purchase 0.6 (or 3/5 in fraction terms) pounds for $2.10.
Hope this helps! :)
$2.00×.50=$1.00
$2.00-$1.00=$1.00
$1.00 is .50 sale price this price is better.
$2.00×.35=$0.70
$2.00-$0.70=$1.30
$1.30 is .35 sale price
