A bag contains 12 blue marbles, 5 red marbles, and 3 green marbles. Jonas selects a marble and then returns it to the bag before
1 answer:
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We have two set of solutions , ( ,
+ 3 ) , ( -
+ 3 , -
+ 3).
<u>Step-by-step explanation:</u>
We have , the following equations:
and
. Let's substitute value of y in bottom equation:
⇒
⇒
⇒
Roots of quadratic equation are given by: a = 1, b= 1 , c = -7
⇒
⇒
⇒ which is actually x = ±
.
We know that ,
⇒ y = ± + 3.
We have two set of solutions , ( ,
+ 3 ) , ( -
+ 3 , -
+ 3).