Answer:
The answer to your question is
x = -2 and y = 10 or x = 10 and y = -2
Step-by-step explanation:
x + y = 8 (1) from (1) x = 8 - y
xy = - 20 (2)
Solve them by substitution
(8 - y) y = - 20
8y - y² = -20
y² - 8y - 20 = 0
( y - 10) (y + 2) = 0
y - 10 = 0 and y + 2 = 0
<u> y1 = 10 </u> <u>y2 = -2</u>
x1 = 8 - 10 x2 = 8 - -2
<u>x1 = -2</u> <u> x2 = 10</u>
Answer: 6m -5
Distribute 5
m+ 5m-5
Simplify
6m -5
Answer: 18 dollars
Step-by-step explanation:
0.40 times 45 = 18 dollars
Answer:
3443
———— =<u><em> C. 202</em></u>
17
Step-by-step explanation:
Step 1 :
3443
Simplify ————
17
Final result :
3443
———— = 202.52941
17
Processing ends successfully
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