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3 years ago

7

An overhead projector enlarges the image on its glass by a scale factor of 4. A rectangle that is 3 inches wide and 7 inches lon

g on the glass is projected on a screen. What is the length of the rectangle on the screen?

1 answer:

qwelly [4]3 years ago

6 0

Just multiply the with and the length by four (considering the scale factor is 4)
3x4=12 and 7x4=28

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The difference between two numbers is 14. if 1/3 of the larger number is subtracted from the smaller number ,the result equals 1

otez555 [7]

Answer:

Step-by-step explanation:

x-y=14

x-1/3y=1/10

-y=14-x

y=-14+x

take out the factors

x-10/30y=3/30

30x-10y=3

substitute

30x-10(-14+x)=3

30x+140-10x=3-140

20x/20=-137/20

x=-6.85

y=-14+(-6.85)

y=-20.85

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2 years ago

2. Are these ratios equal? 6:10 and 5:20

Step2247 [10]

Answer:

No

Step-by-step explanation:

Think of it like this. 6/10 is 60% and 5/20 is 25%. These two values aren't the same.

3 0

2 years ago

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What property is <br><br> 5(x+y)=5x+5y

Law Incorporation [45]

Answer: Distributive Property

4 0

3 years ago

Can someone do this for me?

Amanda [17]

Are theese questions or your answers

if there answers they seem all right

7 0

2 years ago

A recipe calls for 1 3/4 cups of bread flour and 1 2/3 cups of whole wheat flour. what is the total amount of flour used in the

Ivahew [28]

$1 \frac{3}{4} = 1.75 \\ 1 \frac{2}{3} = 1.66$
so
$1.75 + 1.66 = 3.41 \\ 3.41 = 3 \frac{5}{12}$

6 0

2 years ago