Answer: $31.50
Step-by-step explanation:I think; $22.50 x .40=9
$22.50+9=$31.50
If the US could make 14 stereos/hr or 7 cars/hr, this is a ratio of 2 stereos/1 car, or 1 stereo/0.5 cars. Therefore the US opportunity cost of producing 1 stereo is 0.5 car of half a car.
If China (or Japan? given the question in #2) makes 15 stereos/hr or 5 cars/hr, this is a ratio of 3 stereos/1 car, or 1 stereo/0.33 cars.
-2 = -(x-8)
-2 = -x + 8 ( - * + = - and - * - = + )
-2 - 8 = -x +8 - 8
-2 - 8 = -x
-(2+8) = - x
-10 = -x | * (-1)
x=10
260/4 = 65 square inches is area of a side
area of a side = base*height/2 = base *13/2
65 = b*13/2
130=b*13
b = 10 so the side length equal 10 inches
area of base = 10*10 = 100
volume of a pyramid = area of base time height /3
(the height of pyramid)^2 = 13^2 - 5^2
h^2 = 169 -25 = 144
h = 12
V = area of base time height /3 = 100*12/3 = 400 cubic inches
hope this will help you
Answer:
220
Step-by-step explanation:
Let us assume that x number of necklaces are to be fixed to break even i.e. cost price = profit.
Now, cost for x necklaces is 35x + 1650, and selling price is 85x. {As per given condition}
Therefore, profit will be = 85x - (35x +1650) =50x -1650
Hence, to make break even, the condition is
50x - 1650 = 35x + 1650
⇒15 x =3300
⇒ x =220.
Hence, 220 number of necklaces must the jeweler fix to break even. (Answer)