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jeka94
3 years ago
5

the length of a rectangle is 6 meters more than it's width of the the area of the rectangle is 135 square meters find it's demen

sion
Mathematics
1 answer:
bekas [8.4K]3 years ago
8 0
Answer:

The length is 15 meters and the width is 9 meters.

Explanation:

If we set this up as an algebraic equation, the length, l, and the width, w, would be set up as <span>l=w+6</span>

Provided <span>A=l⋅w</span>, we can substitute l as <span>w+6</span> so that <span>A=<span>(w+6)</span>⋅w=<span>w2</span>+6w</span>

If your Area, A is <span>135<span>m2</span></span>. we plug it in so that <span>135=<span>w2</span>+6w</span>

Subtract 135 from both sides to get <span>0=<span>w2</span>+6w−135</span>. If we factor this we get <span><span>(w+15)</span><span>(w−9)</span>=0</span>, so <span>w=−15or9</span>. Since distance can't be negative, <span>w=9</span>

If <span>l=w+6</span>, <span>l=9+6=15</span>

So the width is 9 meters and the length is 15 meters.

Hope it helps!

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A, B and C can do a piece of work in 20, 30 and 60 days respectively. In how many days can A do the work if he is assisted by B
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Mary made $176 for 11 hours of work at the same rate, how much would she make for 8 hours of work?
defon
$128

We have the rate “$176 for 11 hours of work”
Find the unit rate of dollars per hour by:
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UNIT RATE: $16 per hour

Now find how much dollars for 8 hours by:
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FINAL ANSWER:Mary would earn $128 for 8 hours of work

BRAINLIEST?
Have a nice day!
-SpaceMarsh :D
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