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pashok25 [27]
2 years ago
15

What ratio is equivalent to 3:4

Mathematics
1 answer:
Rashid [163]2 years ago
4 0

Answer:

A

Step-by-step explanation:

A) 30:40=3:4

B) 30:70=3:7

C) 2:1

D) 8:6=4:3

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Please solve this question. ​
egoroff_w [7]
<h3><u>Answer</u> :</h3>

Let numerator of fraction be x and denominator be y.

∴ Fraction = x/y

★ <u>Part - A</u> :

:\implies\tt\:\dfrac{x\times 4}{y-2}=2

:\implies\tt\:4x=2(y-2)

:\implies\tt\:4x=2y-4

:\implies\tt\:2y=4x+4

:\implies\bf\:y=2x+2\:\:\dots (1)

★ <u>Part</u><u> </u><u>-</u><u> </u><u>B</u> :

:\implies\tt\:\dfrac{x+15}{2y-2}=\dfrac{9}{7}

:\implies\tt\:7(x+15)=9(2y-2)

:\implies\tt\:7x+105=18y-18

From equation (1)...

:\implies\tt\:7x+105=18(2x+2)-18

:\implies\tt\:7x+105=36x+38-18

:\implies\tt\:29x=105-18

:\implies\tt\:x=\dfrac{87}{29}

:\implies\boxed{\bf{x=3}}

:\implies\tt\:y=2x+2

:\implies\tt\:y=2(3)+2

:\implies\boxed{\bf{y=8}}

∴ Fraction = x/y = 3/8

<h3>Hope It Helps!</h3>
5 0
3 years ago
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If y varies directly as x, and y = 6 when x = 5, find y when x = 15
r-ruslan [8.4K]

Answer:

y=18 when x=15

Step-by-step explanation:

7 0
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yanalaym [24]
Tan(30°) = opposite/adjacent  ⇒

opposite = adjacent * tan(30°) = 25 * 0.5773 ≈14.4 in  ← <span>to the nearest tenth.</span>
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Please help fasttt!!
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Answer:

then u help me

Step-by-step explanation:

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Sheldon gets paid $4 per hour to babysit his cousin. This
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Answer:

6

Step-by-step explanation:

4 times 8 = 32. 56 - 32 = 24. 24 divided by 4 = 6.

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2 years ago
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