Use the system of equations you wrote in problem 2 to find how many dimes and quarters Roberta has.
A.) 10 dimes and 15 quarters
Check your solution
in the equation that
shows the total
B.) 10 dimes and 35 quarters
amount of money
C.) 15 dimes and 10 quarters
D.) 15 dimes and 35 quarters
Dennis chose A as the correct answer. How did he get that answer?

y = 3x+4

step-by-step explanation:

to find the slope

slope = (y2-y1)/ (x2-x1)

    = (-8-4)/ (-4-0)

    = -12/-4

  = 3

using the slope intercept form of a line

y= mx+b

we know the slope is 3

we know the y intercept is 4 ( the point where it crosses the y axis or x=0)

y = 3x+4

246

step-by-step explanation:

38.6°

step-by-step explanation:

resultant is 10 pound

smaller force = 8 pound

angle formed = tan⁻¹(

                        =tan⁻¹(

                          =tan⁻¹(0.8)

                        =38.6°