The surface area of the pencil is the amount of space it covers
The surface area of the pencil is 61 square centimeters
<h3>How to determine the surface area?</h3>The given parameters are:
H = 20 cm
L = 0.5 cm
The surface area (SA) is then calculated as:
SA = 6LH + 3L^2
This gives
SA = 6 * 0.5 * 20 + 3 * 0.5^2
Evaluate the sum
SA = 61
Hence, the surface area of the pencil is 61 square centimeters
Read more about surface area at:
Step 1
Let
x------> the cost in dollar
y-----> the pounds of grapes
we know that
A relationship between two variables, x, and y, represent a direct variation if it can be expressed in the form or
The line in the graph represent a direct variation
Find the constant of proportionality k
------> substitute point B ----->
The slope is equal to the constant of proportionality
so
the linear equation is
therefore
<u>the answer Part a) is</u>
For every dollar you spend, you can get pounds
Step 2
Find the cost for one pound of grapes
Let
substitute the value of g in the linear equation and solve for c
therefore
<u>the answer Part b) is</u>
For each pound of grapes, you would need
Answer:
10 miles
Step-by-step explanation:
Given: Boat goes hours with 8 mph (i)
Boat goes hours with 12 mph (ii)
Now, lets find out distance separately to get total distance.
Formula for finding distance is
D=
D= (i)
D=
∴ D1= 6 miles (i)
D= (ii)
∴D2= 4 miles (ii)
To find total distance, we will add d1 and d2
Total distance =
∴ Total distance =
= 10 miles is the total distance covered by boat in all this time.