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3 years ago

How do you explain a ratio in words?

Mathematics

2 answers:

netineya [11]3 years ago

3 0

Well a ratio is a fraction but with a colon so 7/12 would be 7:12

zubka84 [21]3 years ago

3 0

Ratio basically means half of the diameter. EX: The Diameter is 12 , the ratio would be 6. Or ratio could just mean what to what. EX: Say theres a classroom w/ 11 boys and 8 girls the ratio would be 11:8 or 11|8 or 11 to 8

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X-5y=2 and 9x+8=15 solve by substitution

lozanna [386]

$x-5y=2$
Hence $x=2+5y$ (Equation I)
$9x+8=15$ (Equation II)
Substituting Equation I in Equation II
$9(2+5y)+8=15$
$18+45y+8=15$
$26+45y=15$
$45y=-11$
Hence $y= - \frac{11}{45}$

Substituting this in Equation in I to get X

$x-5(- \frac{11}{45} )=2$
$x+ \frac{11}{9}=2$
$x= 2- \frac{11}{9}$
$x= \frac{17}{9}$

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3 years ago

R=P over I squared. Solve for I.

kirza4 [7]

Answer: I=sqrt(P/R)

Step-by-step explanation:

R=p/I^2

Multiple l squared on both sides...

(I^2) R=p/l^2 (l^2)

R(I^2)=p

Separate I by dividing both sides by R...

I^2=p/R

Square root both sides...

I=sqrt(P/R)

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3 years ago

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larisa [96]

Answer:

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Step-by-step explanation:

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Square root = 8 OR -8

1 to the 9th power = 1

-8 / 1 = -8

8/1 = 8

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Phantasy [73]

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