A) x + y = -39
B) x * y = 10
From A) we see x = -y -39 then we substitute this into B
B) (-y -39) * y = 10
-y^2 -39y = 10
-y^2 -39y -10 = 0
y = -38.742
x = -.258
Answer:
C. 1/9 sq yd
Step-by-step explanation:
1/3 * 1/3 = 1/9
She spent 21 minutes completing the math problems. But then you add the 9 minutes she spent checking. Your answer is 30 minutes in total
