Kim has two telephones. One is cellular and the other is a land line. The rates for local calls are shown in the table below. |Types of Telephone Rates Cellular Land Line Monthly Rental Fee SO $45 Charge per minute 85cents 15cents on calls made 6) In one month, calls were made lasting for a total of 1 hour and 5 minutes. Show by calculations, that the cost for using the land line telephone was less than the cost for using the cellular telephone. (ii) For the month of March, the land line telephone was used, and the bill was $54.60. Calculate the total time, in minutes, for which the calls lasted.
Unitary Method
The word “unitary” comes from the word “unit”, which means a single and complete entity. In this method, we find the value of a unit product from the given number of products, and then we solve for the other number of products.
Speed, Time, and Distance
Imagine you and 3 of your friends are planning to go to the playground at 6 in the evening. Your house is one mile away from the playground and one of your friends named Jim must start at 5 pm to reach the playground by walk. The other two friends are 3 miles away.
Profit and Loss
The amount earned or lost on the sale of one or more items is referred to as the profit or loss on that item.
Units and Measurements
Measurements and comparisons are the foundation of science and engineering. We, therefore, need rules that tell us how things are measured and compared. For these measurements and comparisons, we perform certain experiments, and we will need the experiments to set up the devices.
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