1. a theater group bought supplies to construct the set of a play. lumber cost $135.86, paint cost $62.91, and hardware cost $27.63.
(a) what was the total amount the theater group paid for the supplies? show your work.
(b) what percent of the total cost was the cost of the hardware? write your answer as a percent rounded to the nearest tenth. show your work.

(c) what percent of the total cost was the cost of the paint and the lumber? write your answer as a percent rounded to the nearest tenth. show your work.

The answers are:

a. $226.40

b. 12.2%

c. 87.8%

Step-by-step explanation:

In order to find the total cost, add all three costs together.

135.86 + 62.91 + 27.63 = 226.40

Now to find the percentage cost of the hardware, divide the hardware cost by the total cost.

27.63/226.40 = 12.2%

And since we know that the hardware cost 12.2%, we can find the percentage of the other costs by subtracting the percentage cost of the hardware from 100.

100% - 12.2% = 87.8%

207/8 is the right

given : the shape of his satellite can be modeled by   where x and y are modeled in inches.

now,the given equation   is a equation of parabola.

here, coefficient of x is positive, hence the parabola opens rightwards.

on comparing this equation with standard equation , we get

in standard equation, coordinates of focus=(0,m)

thus for given equation coordinates of focus=(0,1.5)

step-by-step explanation: