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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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if an exterior angle of a triangle has a measure of 35 degrees, what is the measure of the adjacent interior angle?
Alona [7]

Answer:

145

Step-by-step explanation:

Adjacent interior angle = x

Sum of exterior angle and adjacent interior angle = 180

35 + x = 180

x = 180 - 35

x = 145

3 0
3 years ago
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When Vince does 14 push-ups and 12 sit-ups, it takes a total of 52 seconds. In comparison, he needs 48 seconds to do 12 push-ups
marshall27 [118]

Answer:

it takes 2 seconds to do one situp

it takes 2 seconds to do one pushup

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to do 12 situps it takes 24 seconds

to do 12 pushups, it takes 24 seconds

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hope this helps :)

Step-by-step explanation:

14x + 12y = 52

12x + 12y = 48

^^^ this is an inequality that we can make.  

x stands for pushups

y stands for situps

if we subtract the second equation from the first, we get

2x = 4

x = 2

now we can place x in one of the equations to solve for y

12(2)+12y=48

24 + 12y = 48

12y = 24

y = 2

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2 years ago
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Answer:

a- 130, 130, and 50

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Suppose that we have two identical boxes: box 1 and box 2. box 1 contains 5 red balls and 3 blue balls. box 2 contains 2 red bal
sineoko [7]

(a) The probability of drawing a blue marble at random from a given box is the number of blue marbles divided by the total number of marbles. We assume that the probability of selecting one of two boxes at random is 1/2 for each box.

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Find the following slope of the following line ​
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Answer:

The slope to the question provided is \frac{1}{3}

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