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slamgirl [31]
4 years ago
7

What is the solution to the proportion? Start Fraction 3 y minus 8 over 12 End fraction equals start fraction y over 5 End Fract

ion?
Mathematics
1 answer:
evablogger [386]4 years ago
6 0
We have that

(3y-8)/12=(y/5)---------> 5*(3y-8)=12*(y)
15y-40=12y-------------> 15y-12y=40
3y=40--------------> y=40/3

y=(40/3)----------> 13.33

the answer is y=40/3  (13.33)
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I don’t understand the problem please help
balu736 [363]

Answer:

See below

Step-by-step explanation:

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8 ×2/5(0.40) =3.2 which is between 0 and 8, making the first statement true. Hopefully, this gives you an idea on how to answer the rest!!

3 0
4 years ago
Find the missing sides.
love history [14]

Answer:

Part 3)

x=6\ units

y=3\ units

Part 4) x=18\sqrt{2}\ units

Step-by-step explanation:

Part 3)

<em>step 1</em>

Find the value of x

In the right triangle of the figure we know that

The cosine of angle of 30 degrees is equal to the adjacent side to angle of 30 degrees divide by the hypotenuse

so

cos(30\°)=\frac{3\sqrt{3}}{x}

and remember that

cos(30\°)=\frac{\sqrt{3}}{2}

substitute

\frac{\sqrt{3}}{2}=\frac{3\sqrt{3}}{x}

Simplify

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<em>step 2</em>

Find the value of y

In the right triangle of the figure we know that

The sine of angle of 30 degrees is equal to the opposite side to angle of 30 degrees divide by the hypotenuse

so

sin(30\°)=\frac{y}{x}

and remember that

sin(30\°)=\frac{1}{2}

substitute

\frac{1}{2}=\frac{y}{6}

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Part 4) Find the value of x

Applying the Pythagoras Theorem

x^{2} =18^{2} +18^{2} \\ \\x^{2} = 324+324\\ \\x^{2}=648\\ \\x=\sqrt{648}\ units

Simplify

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6 0
3 years ago
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3 years ago
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SpyIntel [72]

Answer:

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4 0
3 years ago
Read 2 more answers
Could someone please help ;(
Iteru [2.4K]

Answer:

a. 25/33

b. 36

c. 1/15

d. 35/12

e. 19/12

7 0
3 years ago
Read 2 more answers
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