I would say A is the only logical answer
<h3>
Answer:</h3>
unshaded area = 25(4 -π) in^2 ≈ 21.46 in^2
<h3>
Step-by-step explanation:</h3>
Each of the shaded circles has a diameter of (20 in)/4 = 5 in, which also is the width of the enclosing rectangle. Then each circle has a radius of 2.5 in, and an area of ...
A = πr^2 = π(2.5 in)^2 = 6.25π in^2
The four circles together have an area of ...
4A = 4·(6.25π in^2) = 25π in^2
The area of the rectangle is the product of its length and width:
A = LW = (20 in)(5 in) = 100 in^2
Since the circles are shaded, the unshaded area is the difference between the rectangle area and the total area of the four circles:
unshaded area = (100 in^2) - (25π in^2) = 25(4 -π) in^2 ≈ 21.46 in^2
Answer:
21200
Step-by-step explanation:
apex
Answer:
thequantity in column b is greater
Step-by-step explanation:
7a+b=33......(1)
3a-b=7.........(2)
(1)+(2)
7a+b+3a-b=33+7
10a+b-b=40
10a=40
a=4
in equation (1)
7*4+b=33
28+b=33
b=33-28
b=5
b>a
1. cost + 380%×cost = 4.80×cost = $1.88
... cost = $1.88/4.80 = $0.39
2. The relation between markup, cost, and selling price lets you find the cost, hence the markup.
... cost + markup = selling price
... cost + 0.75×cost = (1+0.75)×cost = 1.75×cost = $3.49
... cost = $3.49/1.75
... markup = 0.75×cost = 0.75×($3.49/1.75) = $3.49×(0.75/1.75) = $1.50
3. Same wording as 2. None of the given answers is correct.
... cost is $1.99; markup is 75%×$1.99 = $1.50; selling price = $1.99 + 1.50 = $3.49
(Have your teacher show you how to work this.)
5. Same as 2 and 3, but with different numbers.
... markup = (130%/230%)×(selling price) = (13/23)×$77.77 = $43.96
(Check: cost is 43.96/1.3 = 33.81; cost + markup = 33.81 + 43.96 = 77.77)
