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malfutka [58]
3 years ago
12

Do 5/7 and 30/42 form a proportion

Mathematics
1 answer:
GREYUIT [131]3 years ago
4 0
5/7
6*5/6*7
30/42

30/42 = 30/42

Yes, 5/7 and 30/42 form a proportion.
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Help plssssssssssssssssssssss
Ilia_Sergeevich [38]

Answer:

Then the solution is (4, 6).

Step-by-step explanation:

Let's use the substitution method:

First multiply the second equation by 4, obtaining 4y = -2x + 32.

Now substitute (-2x + 32) for 4y in the first equation:

3x + (-2x + 32) = 36, or

3x - 2x + 32 = 36. or

x = 4.

If x = 4, then the second equation yields y = (-1/2)(4) + 8, or

y = -2 + 8, or y = 6

Then the solution is (4, 6).

Check, using the first equation:

Does 3(4) + 4(6) = 36?  Does 12 + 24 = 36?  YES

 

7 0
3 years ago
erika has 3 pieces of ribbon.each piece id 25 yards long.she needs to cut pieces that are 22 inches long.what is the greatest nu
OlgaM077 [116]
There is 900in in 25 yards so 900*3=2700/22=122.7
so it will be 122 pieces
6 0
3 years ago
X+3-3= -6<br> its my quick hot sauce
Yuri [45]
Ok nice answer…… well done
4 0
3 years ago
Fifteen equals s over thirteen
zimovet [89]
Can you restate the question please
6 0
3 years ago
Slope and y intercept y=7/4x-10
Andreas93 [3]

Hi there!

The slope is the number in front of x so it is 7/4 or 1 3/4

The y-intercept is the independent number in the equation, so it is -10

Your friend, ASIAX

7 0
3 years ago
Read 2 more answers
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