PLEASE HELP!! 20 POINTS WORTH
1 answer:
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Answer:
He have <u>17 CDs</u> on Monday.
Step-by-step explanation:
Given:
On Tuesday James bought seven CDs. On Wednesday half of all the CDs that he had were destroyed. On Thursday he had 12 left.
Now, to find the CDs he have on Monday.
Let the CDs he have on Monday be
<em>So, on Tuesday as James bought 7 CDs:</em>
<em>Now, on Wednesday half of all the CDs that he had were destroyed:</em>
As, given on Thursday he had left CDs = 12.
According to question:
<em>Multiplying both sides by 2 we get:</em>
<em>Subtracting both sides by 7 we get:</em>
Therefore, he have 17 CDs on Monday.
Both the given lines in graph intersect at point (5 , -2), the point must satisfy both the equations.
and if we check the options, we will observe that D. option has both the equations that satisfy the given conditions.
that is ~
put y = - 2,we will get :
so, 1st equation satifys the condition. let's check out 2nd one.
put y = -2
Hence, we can conclude that the Correct choice is D