The final exam for Miguel's math class is worth 120 points and will be comprised of an assortment of 50 multiple choice and free-response questions. Each multiple choice question is worth 2 points and each free-response question is worth 3 points. Which system of linear equations can be used to find x, the number of multiple choice questions on the final, and y, the number of free-response questions? A.
{x+y=120
{3x+2y=50
B.
{x+y=50
{3x+2y=120
C.
{x+y=120
{2x+3y=50
D.
{x+y=50
{2x+3y=120

relating to or denoting a system of numbers and arithmetic based on the number ten, tenth parts, and powers of ten.

it alot will look like this 4.4

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)

x= 25/4.

is your answer.

step-by-step explanation: