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2 answers:
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Answer:
Percent increase is 21%
Step-by-step explanation:
Initial cost of shoes = $72
New price of shoes = $87
Increase in price of shoes = New price of shoes - Initial cost of shoes
=
= $15
Percentage increase in price of shoes = ( Increase in price of shoes ÷ Initial cost of shoes) × 100
=
≈ 21%
So, percent increase is 21%
Answer:
9π OR 28.26
Step-by-step explanation:
The formula for circumference is C = 2πr.
Substitute circumference = 18.84 for C.
18.84 = 2πr
Work backwards to find the radius of your circle.
r = 3
Now, use the formula for the area of a circle: A = π.
Substitute r = 3 into the equation:
A = π = 9π ≈ 28.26
Answer: Please, see the attached file.
Thanks.
Solution:
We can graph using the intercepts:
(1) y-intercept, when x=0
y=4x-3→y=4(0)-3→y=0-3→y=-3
Point=(x,y)=(0,-3)
(2) x-intercept, when y=0
y=4x-3→0=4x-3
Solving for x: Adding 3 both sides of the equation:
0+3=4x-3+3
3=4x
Dividing both sides of the equation by 4:
3/4=4x/4
3/4=x
x=3/4=0.75
Point=(x,y)=(3/4,0)=(0.75,0)
With these pair of points (0, -3) and (0.75,0) we can draw the right line
