Answer:
See explanation
Step-by-step explanation:
The lateral surface area of a cylinder is calculated using:
We have that the lateral surface area is about, 80 square inches.
Assuming the radius is 10 inches, then we substitute r=10, π=3.14 and solve for h.
We solve for h to get:
Answer:
12.05$
Step-by-step explanation: 2.65$ x 3 - 20$= 12.05$
Answer:
10.59
Step-by-step explanation:
divide the total earning by the amount of friends there is
Answer:
y = 100 - 2.5 x is the equation that represents her total profit from
the project
Step-by-step explanation:
The given is:
1. An electrician earns 100 dollars for a project installing light fixtures
2. She must pay for the light fixtures herself and they cost 2 dollars
and 50 cents each
3. x represent the number of light fixtures and y represent her
total profit
Her profit is the amount of money she has left over after paying for
the light fixtures
∵ The cost of each light fixtures is 2 dollars and 50 cents
- Let us change the cents to dollar
∵ $1 = 100 cents
∴ 50 cents = dollar
∴ 2 dollars and 50 cents = $2.5
∵ Her profit = The money she earns - The money she pays
∴ The cost of each light fixtures = $2.5
∵ She installs x light fixtures
∴ She pays 2.5 x dollar
∵ She earns $ 100 for installing x light fixtures
∵ Her profit is $y
∴ y = 100 - 2.5 x
y = 100 - 2.5 x is the equation that represents her total profit from
the project
Step-by-step explanation:
