a school choir needs to make t-shirts for its 75 members and has

to pay for them. the members of the choir decided to order from a p

shirt, plus a $50 fee for each color to be printed on the shirts

s and has set aside some money in their budget

der from a printing company that charges $3 per

1. write an equation that represents the relationship between the

of colors on the shirts, and the total cost of the order. if you use a

veen the number of t-shirts ordered, the number

u use a variable, specify what it represents.

step-by-step explan mxfcg'k; uafwgzfgjhklhgation:

true

step-by-step explanation:

5x+40

5(x + 8)

7x - 49

7(x - 7)

18x + 9

9(2x + 1)

15x - 10

5(3x - 2)

step-by-step explanation:

for number one all you have to do is factor 5 out of 5x + 40

for number 2 factor 7 out of 7x - 49

for number three factor 9 out of 18x + 9

for number four factor 5 out of 15x - 10

answer: (-8,4) are the coordinates of a

step-by-step explanation:

let the side of square abcd is x .

thus the area of square abcd is .

now, by the diagram area of triangle ead= 1/2 × ea × ad = 1/2 × ea × x

( because ad is the side of square)

and, according to the question,

the areas of square abcd and right ead are equal.

⇒

⇒ea=2x

thus, ea: ab=2: 1

therefore, point a divides line segment eb into the ratio 2: 1.

⇒ by sectional formula coordinates of a are,

=

=

=(-8, 4)

thus the coordinates of a are (-8,4)