1) Bob can type 2 letters in 4 hours while Bill can do it in 6 hours. How many hours would it take them to type six letters toge
1 answer:
You might be interested in
Answer: C)
Step-by-step explanation:
First we need to calculate the area of the square base.
This is 7*7 which equals 49 cm squared.
Plug this value into the formula of a square pyramid which will be , now plug in the h, which is 9 cm.
Now solve.
V = 147 cubic cm.
Answer:
Solving we get
Step-by-step explanation:
We need to find solution of
Solving the inequality:
Multiply 6 with terms inside the bracket
Subtracting 12 on both sides
Adding 4x on both sides
Divide both sides by -2 and the inequality will be reversed i.e < will be changes to >
So, after solving we get