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irakobra [83]
4 years ago
6

Which equation represents a proportional relationship that has a constant of proportionality equal to 0.7?

Mathematics
2 answers:
OverLord2011 [107]4 years ago
6 0

Answer:

  \dfrac{y}{x}=\dfrac{7}{10}

Step-by-step explanation:

The usual representation of a proportional relationship is ...

  y = kx

You want the constant of proportionality (k) to be 7/10, so this is ...

  y = (7/10)x

Dividing by x gives the equivalent relationship ...

  y/x = 7/10

german4 years ago
6 0

Answer:the correct answer is A

Step-by-step explanation:i hope this helps! have a great day everyone!!!!!:)

SMILE I KNOW SCHOOL SUCKS!!!

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If 3x / 4 = 7 - x / 3, then x = what?
Alja [10]
\frac{3x}{4} = 7-\frac{x}{3} 


\frac{3x*3}{4*3} =  \frac{7*12}{12} -\frac{x*4}{3*4} 


\frac{9x}{12} = \frac{84}{12} -\frac{4x}{12}
12*( \frac{9x}{12} = \frac{84}{12} -\frac{4x}{12} )
9x=84-4x

13x=84
84/13


5 0
3 years ago
.............................screenshot
antoniya [11.8K]

Answer:

92.5 cm²

Step-by-step explanation:

Lets take this step by step

Bottom rectangle is 2 by 5, so then 2*5 = 10

Large rectangle is 8 by 9, so 8*9 = 72

The triangle is 7 by 3, you get the 7 by subtracting the 5 side from the square because using the square you can tell that the height is 9 - something.

The 5 you get is from subtracting the cut part that you might have made because the height of that is 2, therefore you cut off 2 from 7 making it 5

Triangle area is h*b / 2, therefore 7*3 = 21/2 = 10.5

Add them all together, 10.5 + 10 + 72 and you get 92.5

6 0
4 years ago
Read 2 more answers
Mrs. Lavetan has 45 to complete her writing paper. She spend 10 and 1/8 min to planning her paper and 15 and 1/2 minutes weighti
Flura [38]

Answer: 20 minutes

Step-by-step explanation:

She has 45 mins to complete her writing paper.

She spends: 10\frac{1}{8} minutes to plan her paper.

She spends: 15\frac{1}{2} minutes writing rough drafts.

How much time left does she have?

45-(10\frac{1}{8} +15\frac{1}{2})

45-(10+15(\frac{1}{8}+\frac{1}{2}))

45-(25\frac{(1)(2)+(8)(1)}{(8)(2)})

45-(25\frac{2+8}{16} )

45-(25\frac{10}{16}) Simplify the fraction.

45-(25\frac{5}{8})

45-25(\frac{5}{8})

So she has approximately,

20\frac{5}{8} =\frac{165}{8}= 20 minutes.

8 0
4 years ago
Its a mee again and I just wanted to ask<br><br> whats 10 divided by 9075
ruslelena [56]

Answer:

0.00110192837

Step-by-step explanation:

6 0
3 years ago
Bh+hr=25 solve for r please work it out step by step
denis23 [38]

So firstly, factor out h on the left side: h(b+r)=25

Next, divide both sides by h: b+r=\frac{25}{h}

Lastly, subtract both sides by b and your answer will be r=\frac{25}{h}-b

7 0
3 years ago
Read 2 more answers
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