Solve the equations
3a + b = 10 and 2a + 4b =0.
3a + b = 10
2a + 4b=0​

Step-by-step explanation:

3a + b = 10...eq 1

2a + 4b = 0...eq 2

multiple eq 1 by 4

12a +4b = 40

12a + 4b - 2a -4b = 40

10 a = 40

a = 40/4 = 10

put a =10 in equation

3a + b = 10

3(10) + b = 10

b = -20

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complete the steps to find the area of the trapezoid.

area of rectangle = 256   square units

area of triangle 1 = 24  square units

area of triangle 2 = 16  square units

area of triangle 3 =   96 square units

area of trapezoid = 120  square units

step-by-step explanation:

step-by-step explanation: