You bought 3 whiteboard markers and one eraser for each of the ten students in class. a eraser costs $2.75 and the total cost was $177.50. write and solve an equation that you could use to find the cost of each whiteboard marker

Let M represent the cost of a whiteboard marker.

10(3M + $2.75) = $177.50

3M + $2.75 = $17.75

3M = $15

M = $5

Hence, each whiteboard marker cost $5.

c - they will have the same distribution

step-by-step explanation:

this is the only one that could make sense. : )

(2x + 16) + (x) = 180

step-by-step explanation:

given,

abcd is a quadrilateral inscribed in a circle

angle a is labeled x plus 16, (x + 16)

angle b is labeled x degrees, (x)

angle c is labeled 6x minus 4, (6x – 4)

angle d is labeled 2x plus 16, (2x + 16)

what equation can be used to solve for angle b?

we know that the sum of the opposite angles of a simple quadrilateral inscribed in a circle is 180 degrees.

angle b is opposite angle d

therefore, angle b + angle d = 180

(x) + (2x + 16) = 180 

same as (2x + 16) + (x) = 180