The sum of two numbers is 72 and their difference is 40. Using elimination method
1 answer:
Answer:
here's what we know:
a + b = 72
a - b = 26
We can use the elimination method to solve this problem:
a + b = 72
a - b = 26
---------------
2a = 98
Divide both sides by 2:
a = 49
So we now have:
49 + b = 72
and:
49 - b = 26
Subtract 49 from both sides:
b = 23
and
-b = -23 (multiply both sides by -1) → b = 23
Step-by-step explanation:
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Answer:
b = 26°
Step-by-step explanation:
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X^2 + 3x - 4 = 6
x^2 + 3x -10 = 0
(x + 5)(x - 2) =0
x = -5 or x = 2
solution set is {-5,2}
You did not give me the choices but think I can still answer the question.
I the answer may be:
parallelogram,
square,
or rectangle.
Answer is attached below.