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Olegator [25]
3 years ago
12

The length of a rectangle is 2 cm less than 7 times the width. The perimeter is 60 cm. Find the width of the rectangle. HINT: Dr

aw a rectangle and label the longer side l for length and the shorter side w for width. Then write an expression for the length based off of w. Reminder that perimeter is the sum of all of the sides
Mathematics
1 answer:
klemol [59]3 years ago
3 0

Answer:

Step-by-step explanation:

Perimeter of a rectangle = 2L +2W

L is the length

W is the width

If the length of a rectangle is 2 cm less than 7 times the width, then;

L = 7W-2 .... 2

Substitute eqn into the formula for finding the perimeter

P = 2(7W-2)+2W

P = 14W-4+2W

P = 16W-4

If P =60cm

60 = 16W-4

16W = 60+4

16W = 64

W = 64/16

W = 4cm

Hence the width of the rectangle is 4cm

Since l = 7w-

l = 7(4)-2

L = 28-2

L = 26cm

You can proceed and draw a rectangle with the dimension of 4cm by 26cm

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lilavasa [31]

Option C: -0.5 is the right answer

Step-by-step explanation:

Given is the graph on which different points are indicated.

We have to find the y-coordinae of the mid-point of WU.

The formula for mid-point is:

(\frac{x_1+x_2}{2} , \frac{y_1+y_2}{2})

So we only have to know the y-coordinates of both points to find the mid-points y coordinate

So by observing the graph we get

y_1 =0

y_2 = -1

So,

\frac{0-1}{2}\\= \frac{-1}{2}\\= -0.5

Hence,

Option C: -0.5 is the right answer

Keywords: Mid-point, coordinate geometry

Learn more about coordinate geometry at:

  • brainly.com/question/5193660
  • brainly.com/question/5014739

#LearnwithBrainly

6 0
3 years ago
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neonofarm [45]
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Mazyrski [523]

Answer:

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Step-by-step explanation:

The area (A) of an equilateral triangle is

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3 0
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ValentinkaMS [17]

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Since we know the angle and the opposite side, we can calculate the hypotenuse

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Multiply each side by the hypotenuse

hypotenuse * sin 64 = 13

Divide by sin 64

hypotenuse = 13/sin 64

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