Answer:
<u>The width of the rectangle is 4.8 inches</u>
Step-by-step explanation:
1. Let's review the information given to us to answer the question correctly:
Area of the rectangle = 12 square inches
Length of the rectangle = 2.5 inches
2. What is the width?
We will find out the width, this way:
Width * Length = Area of the rectangle
Replacing with the real values, we have:
Width * 2.5 = 12
Width = 12/2.5
<u>Width of the rectangle = 4.8 inches</u>
A. 168 feet
b. 1 yard = 3 feet
168*3=504 so, 168 feet =504 yards
c. 504 yards*$15=7560
d. $7560
I think the answer is 30 square units
Using the formula a² + b² = c² but reversing it to c² - b² = x² where x replaces the a for comprehension reasons
so this is the formula
c² - b² = x²
insert the numbers on the triangle in the picture
21² - 8² = 377
since 377 is squared and not the side length, we need to square root it to find x
√377 = 19.4~
Answer: x = 19.4
Step-by-step explanation:
You can solve systems of equations using either substitution or elimination. For these problems, I recommend elimination. I'll do the first one as an example.
-3x + 16y = 9
-4x + 8y = 12
Multiply the second equation by -2.
8x − 16y = -24
Add to the first equation (notice the y's cancel out).
(-3x + 16y) + (8x − 16y) = 9 − 24
5x = -15
Solve for x.
x = -3
Now you can plug this into either equation to find y.
-3(-3) + 16y = 9
9 + 16y = 9
y = 0
The solution is (-3, 0).
