Exercise 15 Page 239

Fractions, decimals, and percents are three ways to show parts of a whole. To write a decimal as a percent, we multiply by 100 and add the percent symbol %.

We found that 3.554 expressed as a percent is 355.4 %. We can also use a model to represent this number. <jsxgpre id="Solution_268801_2" alt="" static=1> var b = mlg.board([-21, 11, 11, -1], {desktopSize:'medium', style:'usa'});

var tens = 5; var ones = 5;

/* the one */ for(var i=0; i<10; i++){ for(var j=0; j<10; j++){ b.rectangle([-j,i],[-j-1,i+1],{fillColor:'darkorange'}); } }

/* the two */ for(var i=0; i<10; i++){ for(var j=0; j<10; j++){ b.rectangle([-j-10,i],[-j-11,i+1],{fillColor:'darkorange'}); } }

for(var i=0; i<tens; i++){ for(var j=0; j<10; j++){ b.rectangle([j,i],[j+1,i+1],{fillColor:'darkorange'}); } }

for(var i=0; i<10; i++){ if(i<ones){ b.rectangle([i,tens],[i+1,tens+1],{fillColor:'darkorange'}); }else{ b.rectangle([i,tens],[i+1,tens+1],{}); } }

for(var i=0; i<10-tens; i++){ for(var j=0; j<10; j++){ b.rectangle([j,i+tens+1],[j+1,+tens+1],{}); } }

b.rectangle([5,6],[5.4,5],{fillColor:'darkorange',borders:{visible:false}});

b.trim({});

</jsxgpre>