If five mechanical pencils cost #4.27.
we need to find the scale factor used to calculate the cost of 54 pencils
We are given with 5 pencils
We need to find the scale factor for 54 pencils
we need to find out what multiply with 5 to get 54
For that we divide 54 by 5
so scale factor is 10.8
5 times 10.8 = 54
We multiply the scale factor 10.8 by cost of 5 pencils to find the cost of 54 pencils
10.8 * 4.27 = 46.116 = $46.12
the scale factor 10.8 is used to calculate the cost of 54 pencils
Answer:
Step-by-step explanation:
Given
Required
The cost of units used
First, calculate the number of units used.
Next, multiply the units used by the cost per units,
Since the cost per unit is not given, we assume that it is x.
So, the total cost is:
Answer: 80 feet.
Step-by-step explanation:
1. As you can see in the figure, triangle ABC and the triangle DFG are similar.
2. The scale of factor of triangle ABC to triangle DFG is the following:
3. Therefore, the lenght of the side DG of the trinagle DFG is:
4. The perimeter of the triangle DFG is:
5. Therefore, she would need 80 feet of fence.
Answer:
Hence amount of Alana's donation is $4.5.
Step-by-step explanation:
Amount of Alana's donation = x
Her grandmother agreed to add $4.00 to the amount Alana earned.
So new amount of money = (x+4)
She gives only half of the sum which is (x+4)/2.
She gave her $4.25 so both values must be equal.
Hence amount of Alana's donation is $4.5.