PROBLEM 3
A.) What is the measure of the third side?
B.) Triangle perimeter is 48.763 cm and the known sides are 9.752 cm and 12.621 cm.
C.) The formula for the perimeter of triangle is a+b+c.
D.) 48.763 - (9.752+12.621)= the third side of triangle.
E.) 48.763 - (9.752+12.621)
= 48.763 - 22.373
= 26.39 cm is the third side.
PROBLEM 4
A.) How much is Cora's change?
B.) Plant is cost ₱255.50. Cora have ₱200, ₱50, and ₱20 peso bills.
C.) The total money of Cora is ₱270.
D.) (200+50+20) - 255.50= Cora's change.
E.) (200+50+20) - 255.50
= 270 - 255.50
= ₱14.50 is the change of Cora's money.
PROBLEM 5
A.) How many meters of ribbon does Andrea have left on the roll?
B.) Andrea have 4.76 m and 1.98 m of ribbons.
C.) Andrea have a total of 6.74 meters of cutted ribbon.
D.) 7.45 - (4.76+1.98)= ribbons left on the roll.
E.) 7.45 - (4.76+1.98)
= 7.45 - 6.74
= 0.71 meters of ribbons left on the roll.
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Answers & Comments
PROBLEM 3
A.) What is the measure of the third side?
B.) Triangle perimeter is 48.763 cm and the known sides are 9.752 cm and 12.621 cm.
C.) The formula for the perimeter of triangle is a+b+c.
D.) 48.763 - (9.752+12.621)= the third side of triangle.
E.) 48.763 - (9.752+12.621)
= 48.763 - 22.373
= 26.39 cm is the third side.
PROBLEM 4
A.) How much is Cora's change?
B.) Plant is cost ₱255.50. Cora have ₱200, ₱50, and ₱20 peso bills.
C.) The total money of Cora is ₱270.
D.) (200+50+20) - 255.50= Cora's change.
E.) (200+50+20) - 255.50
= 270 - 255.50
= ₱14.50 is the change of Cora's money.
PROBLEM 5
A.) How many meters of ribbon does Andrea have left on the roll?
B.) Andrea have 4.76 m and 1.98 m of ribbons.
C.) Andrea have a total of 6.74 meters of cutted ribbon.
D.) 7.45 - (4.76+1.98)= ribbons left on the roll.
E.) 7.45 - (4.76+1.98)
= 7.45 - 6.74
= 0.71 meters of ribbons left on the roll.