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aev [14]
2 years ago
7

Which is a valid proportion? 3/4=21/28 5/6=29/30 4/7=16/49 2/5=12/15

Mathematics
2 answers:
zavuch27 [327]2 years ago
7 0

Answer:

A valid proportion would be 3/4=21/28.

Step-by-step explanation:

You would multiply both the 3 & 4 is 3/4 by 7 to get 21/28.

jasenka [17]2 years ago
5 0

Answer:

3/4=21/28

Step-by-step explanation:

This is because 3×7=21 and 4×7=28

Both numbers in the original fraction must be multiplied by the same number to get the equivalent fraction.

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Answer this questions for 40 points! :) it is attached.
telo118 [61]
Im so confused by this question but my only guess would be that since a coin is a 1/2 chance getting it heads twice is 1/2 * 1/2 which is 1/4 so the person who best they can get 2 heads in a row pays 1/4 of the bet being 5 dollars because 1/4 of 20 is 5 and the person who bets that they can't get two heads pays 15 dollars because that is 3/4 of the bet

tldr: 1/4 chance to get heads pays 1/4 of bet 5$
3/4 chance not to get heads pays 3/4 of bet 15$
5 0
3 years ago
Read 2 more answers
I need to find t<br> -13.9t-22.3=30.8t+2
Mars2501 [29]

Answer:

t=−0.543624 lemme know if i was right

Step-by-step explanation:

3 0
3 years ago
Help with all of these please explain if u can !
sveticcg [70]

Answer:

1. 78cm^2

2. 200 ft^2

Step-by-step explanation:

1. i always cut these complex shapes into simpler ones (in this case a rectangle and a triangle)

the rectangles area is 6*8 or 48 and the triangles area is (10*6)/2 or 30 you then add the two areas to get the area for the whole shape 48+30=78

2. once again you're going to break this shape up into the individual rooms and then add them together the garage is a 4*6 room (24) the bedroom is a 8*4 room (32) the living room is a 10*10 room (100) the kitchens a  6*6 room (36) and the bathroom is a 4*2 room (8) you then add all these together

24+32+100+36+8=200

4 0
3 years ago
Read 2 more answers
If two opposite sides of a quadrilateral are perpendicular and congruent, then the quadrilateral is a parallelogram.
romanna [79]
B. False.  hope I could help:)
6 0
3 years ago
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Math question please show work for brainliest :)
yKpoI14uk [10]
Hello!
First of all you look at how many X's the line moves by, in this case it is -3

Then you look at how many y's the line moves by, in this case it is -2

Then you add together the number of X's moved and the number of y's moved:
-3x + -2y
( adding a negative number is the same as subtracting that number)
thus the answer is A. -3x-2y

Hope This helps! :)
5 0
2 years ago
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