Problem 1 :
Ellen wanted to buy the following items:
Does Ellen have enough money to buy all three items if she has $90.
Solution :
Cost of a DVD player = $49.95
Cost of DVD holder = $19.95
Cost of personal stereo = $21.95
Total = 49.95 + 19.95 + 21.95
= 91.85
Amount that he has already = $90.
So, he doesn't have enough money.
Problem 2 :
Melissa purchased $39.46 in groceries at a store. The cashier gave her $1.46 in change from a $50 bill. How much change should the cashier have given Melissa?
Solution :
Amount spent for groceries = $39.46
The cashier gave = 1.46
Amount given by Mellisa = 50
Calculating remaining amount :
So, the amount she should get is $9.08
Problem 3 :
3) If a 10-foot piece of electrical tape has five pieces that are each 1.25 feet cut from it, what is the new length of the tape?
Solution :
Length of the electric tap before it cut = 10 foot
Number of pieces to be cut = 5
Length of each piece = 1.25 feet
New length of the tape = 10 - 5(1.25)
= 10 - 6.25
= 3.75
So, the new length of tape = 3.75
Problem 4 :
Patricia has $425.82 in her checking account. How much does she have in her account after she makes a deposit of $120.75 and a withdrawal of $185.90?
Solution :
Amount she has in her checking account = $425.82
Her deposit = $120.75
Withdrawl amount = 185.90
Problem 5 :
The mass of a jar of sugar is 1.9 kg. What is the total mass of 13 jars of sugar?
Solution :
Mass of one jar = 1.9 kg
Mass of all 13 jars = 13 (1.9)
Multiplying 13 and 19, we get
13 x 19 = 247
13 x 1.9 = 24.7
So, the mass in all 13 jars is 24.7 kg
Problem 6 :
Carpeting costs $9.99 a yard. If Jan buys 17.4 yards, how much will it cost her? (Round your answer to the nearest hundredth)
Solution :
Cost of carpeting = $9.99
Quantity of carpet he is purchasing = 17.4 yards
Total cost spent = 9.99 x 17.4
Multiplying 999 and 174, we get
9.99 x 17.4 = 173.826
So, the required cost is $173.83.
Problem 7 :
If your weekly salary is $1,015.00, how much do you have left each week after you pay for the following?
Solution :
Amount spent for rent, cable tv, electricity and groceries
= 443.50 + 23.99 + 45.62 + 124.87
Amount spent = 637.98
Remaining amount = 1050 - 637.98
Amount left over is $412.02.
Problem 8 :
Brad studied a total of 24.4 hours over a period of four days. On average, how many hours did Brad study each day?
Solution :
Number of hours he is spending = 24.4 hours
Number of days he is studying = 4 days
Number of hours on average = 24.4 / 4
Number of hours he is spending on average = 6.1 hours.
Problem 9 :
Find the perimeter of the rectangle below.
Solution :
Perimeter = 8.75 + 2.4 + 8.75 + 2.4
= 2(8.75) + 2 (2.4)
= 17.5 + 4.8
= 22.3 inches
So, the required perimeter of the rectangle is 22.3 inches.
Problem 10 :
Samantha paid $26.25 for three books that all cost the same amount. What was the cost per book?
Solution :
Cost of all three books = $26.25
Number of books she is purchasing = 3
Cost of one book = 26.25 / 3
So, the cost per book is $8.75
May 21, 24 08:51 PM
May 21, 24 08:51 AM
May 20, 24 10:45 PM