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4 years ago

Rectangle has a perimeter of 48". The length is 4" more than the width. What is the length?

Mathematics

2 answers:

Svetradugi [14.3K]4 years ago

3 0

Answer:

If you don't know it off the top of your head, work backwards.

48/4=12

Check:

12(4)=48

SVETLANKA909090 [29]4 years ago

3 0

Answer:

Length equals 14

Step-by-step explanation:

This problem can be written out as 2 equations

Since we know the perimeter (P) is 48, we can use the formula 2l+2w=P and get 2l+2w=48.

Then we can take the other equation, w+4=l (which I got from the second sentence), and substitute it for l in the equation.

This can be written out as- 2(w+4) + 2w=48

Then we distribute and get 2w + 2w + 8 = 48, simplifying to 4w + 8= 48

We then subtract 8 from 48 and get 4w=40, dividing 40 by 4 to get w=10.

then, we add 4 to w to get 14.

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3 years ago

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Yanka [14]

Answer:

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2 years ago

Solve using the substitution method.

Brilliant_brown [7]

Answer:

x = 1, y = 4

Step-by-step explanation:

This is very simple

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3 years ago

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BaLLatris [955]

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3 years ago

Read 2 more answers

Mr. Mole's burrow lies 5 meters below the ground. He started digging his way deeper into the ground, descending 3 meters each mi

ss7ja [257]

Answer:

See the graph attached

Step-by-step explanation:

Every minute = 3m

At time zero, the depth is zero

Giving coordinates of (0, 0)

At time 1 minute, the depth is 3m

Giving coordinates of (1, 3)

This gives a linear equation

Slope = Δy/Δx

= (3-0)/(1-0)

= 3/1

= 3

Take any general point (x, y)

The equation of the line is:

(y-0)/(x-0) = 3

y/x = 3

y = 3x

See the plot which goes up to a depth of 5m

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3 years ago