The length of a rectangle is 2 less than 3 times the width . the perimeter is 60 inches . find the width
1 answer:
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Choice A is the answer which is the point (1,-1)
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How I got this answer:
Plug each point into the inequality. If you get a true statement after simplifying, then that point is in the solution set and therefore a solution. Otherwise, it's not a solution.
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checking choice A
plug in (x,y) = (1,-1)
This is true because -3 is equal to itself. So this is the answer.
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checking choice B
plug in (x,y) = (2,4)
This is false because 0 is not to the left of -3, nor is 0 equal to -3. We can cross this off the list.
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checking choice C
plug in (x,y) = (-2,3)
This is false because 7 is not to the left of -3, nor is 7 equal to -3. We can cross this off the list.
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checking choice D
plug in (x,y) = (3,4)
This is false because -2 is not to the left of -3, nor is -2 equal to -3. We can cross this off the list.
Answer:
Option C and D!
Step-by-step explanation:
- Option C because:-
When 9 is placed in the box after 7, we get:-
7 ÷ 9 = which is correct!
<u>7 ÷ 9 can also be written as </u><u>. So, this Option is right since the equation is correct when 9 is placed in the box!</u>
- Option D is also correct because,
When we place 9 in the box before , we get:-
9 ÷ = 81
9 ÷ equals 9 x 9 (take the reciprocal of
)
<u>9 x 9 equals 81 which means the equation is correct when 9 is placed in the box!</u>