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Illusion [34]
4 years ago
6

the width of a rectangle is 2 units less than the length.The area of the rectangle is 63 units. What is the length, in units, of

the rectangle
Mathematics
1 answer:
Anton [14]4 years ago
5 0

Answer:

Width = 7. Length = 9.

Step-by-step explanation:

To get the the size of the width, it says that L = (W + 2), so we put in W+2 as a substitute for L. Now we have the equation the area or 63 = W x (W+2). I'm not so great with these problems so I typically just plug in a number for W till I get the area, and put w into the L = W + 2 equation to get L.

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What’s 10 to the power of 2÷25×20+4 divided divided by 2-14
slamgirl [31]
Okay my calculator now says it's 68.
7 0
3 years ago
Geometry: The rectangle shown has a perimeter of 34cm and the given area. Its length is 5 more than twice it's width. Write and
Thepotemich [5.8K]

w - width

2w + 5 - length

w + w + (2w + 5) + (2w + 5) = 6w + 10 - perimeter

34 cm - perimeter

The equation:

6w + 10 = 34    <em>subtract 10 from both sides</em>

6w = 24    <em>divide both sides by 6</em>

w = 4 cm

2w + 5 = 2(4) + 5 = 8 + 5 = 13 cm

<h3>Answer: Width = 4cm, Length = 13cm</h3>
3 0
3 years ago
An airplane flew with the wind for 2.5 hours and returned the same distance against the wind in 3.5 hours. If the cruising speed
KengaRu [80]

Answer:

60 miles per hour.

Step-by-step explanation:

Let r represent speed of wind blowing in miles per hour.          

We have been given that the cruising speed of the plane was a constant 360 mph in air. The speed of the plane is the direction of wind would be 360+r.

The speed of the plane is the opposite direction of wind would be 360-r.

\text{Distance}=\text{Speed}\times \text{Time}

Distance covered in the direction of wind would be 2.5(360+r).

Distance covered in the opposite direction of wind would be 3.5(360-r).

Since both distances are same, so we will get:

2.5(360+r)=3.5(360-r)

900+2.5r=1260-3.5r

900-900+2.5r+3.5r=1260-900-3.5r+3.5r

6r=360

\frac{6r}{6}=\frac{360}{6}

r=60

Therefore, the wind is blowing at a rate of 60 miles per hour.

6 0
3 years ago
How do you solve question 27 and 28
Brrunno [24]

Answer:#1 C.30 #2 40


Step-by-step explanation:

3x+15=7x-5

3x+15+5=7x-5+5

3x+20=7x

3x-3x+20=7x-3x

20=4x

20/4=4/4x

5=x so if it is an equilateral all sides are equal so 3(5)+15=30 so the answer should be 30

So the triangle in #2 is an isoceles so two of the angles are equal so the equation is 2(2x-24)+3x+4=180

4x-48+3x+4=180

7x-44=180

7x=224

x=32

2(32)-24

64-24=40

6 0
3 years ago
Read 2 more answers
Please help asap its due today
storchak [24]

Answer:

$5.30

Step-by-step explanation:

Let me know if you need evidence!

4 0
3 years ago
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