Given the numbers, let’s set up an equation:
2 + 6 + n = 15
We can solve this using steps:
1. Simplify
8 + n = 15
2. Subtract 8 from both sides
(8 - 8) + n = 15 - 8
3. Simplify
n = 7
Let’s plug in 7 to see if it makes sense:
2 + 6 + 7 = 15
Because this equation is true, we have found our number.
Our unknown number is 7.
160+20%= $192.00 is the original price
Answer:
6
Step-by-step explanation:
6j + 27 = j + 57
6j - j = 57 - 27
5j = 30
j = 30 / 5
j = 6
Answer:
The dimensions of the screen are
Length:102 feet
Width: 82 feet
Step-by-step explanation:
we know that
The area of the rectangle (movie screen) is equal to
where
L is the length
W is the width
we have
so
----> equation A
The screen is 20 feet longer than it is wide.
so
---> equation B
substitute equation B in equation A
solve for W
solve the quadratic equation by graphing
the solution is W=82 ft
see the attached figure
Find the value of L
therefore
The dimensions of the screen are
Length:102 feet
Width: 82 feet
Answer is <span>C) 1/4^2
hope it helps</span>