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Mathematics 7 Online
OpenStudy (anonymous):

A rectangle's length is 12 in. less than 3 times its width. Find the set of all the possible widths given that the perimeter must be less than 48 in.

OpenStudy (skullpatrol):

Any ideas?

OpenStudy (anonymous):

maby this but nope no idea {w: 2 in. < w < 4 in.}

OpenStudy (amorfide):

I meant < not =

OpenStudy (skullpatrol):

$$\Huge P = 2l+2w$$

OpenStudy (anonymous):

so how about this question ? Complete the ordered pairs to solve: 3x + 5y = 3; (1,____); (-0.67,____); (____ ,1.4)

OpenStudy (skullpatrol):

you know area is length x width

OpenStudy (amorfide):

oops

OpenStudy (skullpatrol):

@mariaaa8989 the first number in an "ordered pair" is the x-value and the second is the y-value.

OpenStudy (anonymous):

okay so my answer for this was wrong because I put 0; 1; -1.33?

OpenStudy (skullpatrol):

The second answer is not exactly 1.

OpenStudy (anonymous):

0, -.67; 1 ?

OpenStudy (anonymous):

would that be correct ?0, -.67; 1

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