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3 years ago

Marissa thinks that there could be a pattern between the scale factor and perimeter of an image and its pre-image

Mathematics

1 answer:

Alla [95]3 years ago

5 0

Answer:

You should repent God is coming soon

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A ratio of boys to girls in the classroom is 4 to 5 if there are 20 girls how many boys would there be

Viktor [21]

Answer:

16 to 20

Step-by-step explanation:

Let's do our math.

4 to 5

8 to 10

12 to 15

16 to 20

In order to get to 20, you'd have to multiply 5 by 4. So in order to get an equal ratio, you multiply 4 by 4 and get 16.

I hope this helps!

-No one

8 0

2 years ago

A store buys a jacket for $20.00 and then sells it to customers for 80% more than that. What is the selling price of the jacket?

Elis [28]

Your answer would be 36.

Hope this helped!

8 0

3 years ago

Read 2 more answers

Tammy is fertilizing her garden . The garden is in the shape of a rectangle. It’s length is feet and it’s width is 12feet. Suppo

Nezavi [6.7K]

Answer:

Step-by-step explanation:

12 x 12 = 144

144 divided by 20 = 7.2 but round it and get 7

--------------

(<em><u>not 100% sure it's correct)</u></em>

8 0

3 years ago

You have 42 ft. of fencing (1 ft. segments) to make a rectangular garden. How much should each side be to maximize your total ar

Verizon [17]

Answer:

$Length=10.5\ ft$

$Width=10.5\ ft$

$Area=110.25\ ft^{2}$

Step-by-step explanation:

Let

x----> the length of the rectangular garden

y---> the width of the rectangular garden

we know that

The perimeter of the rectangle is equal to

$P=2(x+y)$

we have

$P=42\ ft$

$42=2(x+y)$

simplify

$21=(x+y)$

$y=21-x$ ------> equation A

Remember that the area of rectangle is equal to

$A=xy$ ----> equation B

substitute equation A in equation B

$A=x(21-x)$

$A=21x-x^{2}$ ----> this is a vertical parabola open downward

The vertex is a maximum

The y-coordinate of the vertex is the maximum area

The x-coordinate of the vertex is the length side of the rectangle that maximize the area

using a graphing tool

The vertex is the point $(10.5,110.25)$

see the attached figure

$x=10.5\ ft$

Find the value of y

$y=21-10.5=10.5\ ft$

The garden is a square

the area is equal to

$A=(10.5)(10.5)=110.25\ ft^{2}$ ----> is equal to the y-coordinate of the vertex is correct

6 0

3 years ago

If 8 = 54 and v = 17, Find m.

zhenek [66]

Answer:

What is the m part?

Step-by-step explanation:

8 0

3 years ago