MATHEMATICS MIDDLE SCHOOL

The perimeter of a parallelogram is 72 meters.The width of the parallelogram is four meters less than its length. Find the length and the width of the parrellelogram

Answers

Answer 1
Answer: Parallelogram have 4 sides.

Use the distributive property. 2 multiply the last and negative 4 in the parentheses.
2l + 2(l - 4) = 72 m

Combine Like terms
2l + 2l - 8 = 72 m
4l - 8 = 72 m
Get l all by itself by adding 8 to both sides
4l - 8 = 72 m
+8. +8

Divide both sides by 4
4l = 80
4. 4

l= 20

The width of the parallelogram is four meters less than its length.

4 sides
2 length = 20
2 width = 16

I got 16 by subtracting 4 from 20

Comment if you need any other help :)

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The length of the patio is 4.5 centimeters in the drawing. Find the actual length

Answers

The value of the actual length is 2.25 cm.

Ratio and proportion

A ratio is an ordered pair of numbers a and b, written as a/b where b does not equal 0. A proportion is an equation in which two ratios are set equal to each other.

Given

The length of the patio is 4.5 centimeters.

To find

The actual length of the patio.

How do find the actual length of the patio?

Let the actual length of the patio be x.

And the length of the patio is 4.5 centimeters.

And the ratio is 1:0.5

Then we know proportion is an equation in which two ratios are set equal to each other.

\rm (x)/(4.5) =(0.5)/(1) \n\nx = 2.25

Thus the value of the actual length is 2.25 cm.

More about the ratio and proportion link is given below.

brainly.com/question/165414

Can someone please help me with this? Thank you!

Answers

Answer:

2 1/2

Step-by-step explanation:

  1. 5/8 / 1/4
  2. 5/8 x 4/1
  3. cross cancel 4 and 8 to get 5/2 x 1/1
  4. answer 5/2 or 2 1/2

5/8 divided by 1/4 equals 5/8 times 4/1

that equals 5/2 which becomes 2 1/2

I hoped that helped you!

have a nice day!

The area of a rectangular photograph is 35 square inches. If the width of the photo is 5 inches, how tall is the photo.

Answers

area is length times width.
So you can make a equation. 5*w=35
Where w is length (height)
35/7=5 so 5*7 is 35
the photo is 7 inches tall
You first need to take the area and divide it by the width or height(it doesn't matter) so.. 35 divided by 5( the width) is 7 _ your answer is= the height of your photo is 7 inches  

The five interior angles in a  pentagon are in the ratio 2:3:4:5:6. What is the measure of the pentagon's largest angle?

Answers

The answer is 108 because 540 divided by 5 is 108 degrees

Answer:

108

Step-by-step explanation:

Carrie makes 3 gallons to quarts of lemon lime drink with 2 gallons 3 quarts of pink lemonade to make punch. How much more lemon lime drink they carry used in pink lemonade?

Answers

1 because you have 4 quarts in a gallon and 4•3=12 and 4•2=8+3=11 then subtract that and get 1
1 because you have 4 quarts in a gallon and 4•3=12 and 4•2=8+3=11 then subtract that and get 1 hope this helps you 

Please someone help me and do not just write anything explain thank you . use the information provided to write the vertex form equation of each parabola. y= -2x^2-12x-28 I ended up with (6,-64) is that correct? And remember to add 28 to both sides first PPPPPPPPPPPLLLLLZZZ SOOOOOMMMMONE HEEEELP ME

Answers

ok, so user says that it should be solve for vertex not vertex form
(x,y)
to find the vertex of
y=ax^2+bx+c

the x value of the vertex is -b/2a
the y value is found by plugging in the x value for the vertex back into the original equation and evaluating


y=-2x^2-12x-28
a=-2
b=-12

xvalue of vertex is -(-12)/(2*-2)=12/-4=-3

x value of vertex is -3

plug backin for x
y=-2x^2-12x-28
y=-2(-3)^2-12(-3)-28
y=-2(9)+36-28
y=-18+8
y=-10

yvalue is -10
x value is -3

vertex is (-3,-10)
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