3 years ago

If (m-n)/n = 4/9 what is the value of n/m

Mathematics

1 answer:

Reil [10]3 years ago

4 0

Just do cross multiplication to get the required answer: n/m=9/13

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7 to the negative 3rd porwer times 7 to the negative 2nd porwer times 2 the 0 power divided by 7 to negative 1st power times 7 t

Jobisdone [24]

oof

remember some rules

(a/b)(c/d)=(ac)/(bd)

$\frac{x^a}{x^b}=x^{a-b}$

$x^0=1$

$(x^a)(x^b)=x^{a+b}$

$x^{-a}=\frac{1}{x^a}$

$\frac{(7^{-3})(7^{-2})(2^0)}{(7^{-1})(7^{-4})(2^3)}=$

$\frac{(7^{-3-2})(2^0)}{(7^{-1-4})(2^3)}=$

$\frac{(7^{-5})(2^0)}{(7^{-5})(2^3)}=$

$(\frac{7^{-5}}{7^{-5}})(\frac{2^0}{2^3})=$

$(7^{-5-(-5)})(2^{0-3})=$

$(7^0)(2^{-3})=$

$\frac{1}{2^3}=$

$\frac{1}{8}$

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3 years ago

A light bulb consumes 1440 watt-hours per day. How many watt-hours does it consume in 4 days and 18 hours.

dimaraw [331]

Answer:

6840

Step-by-step explanation:

Well we know there's 24 hours in a day so dividing that by 1440 we get 60. Now we know that it consumes 60 watts ever hour. so now we just have to figure out how many hours there are and times that by 60. So there are 96 hours in 4 days plus 28=114. So times that by 60 ( watts) 114×60=6840

So that's your awnser.

Hope this helps!! If so please mark brainliest and rate/heart to help my account if it did!!

6 0

2 years ago

You're an aeronautical engineering student, and you have been awarded a "Co-op" job at NASA in your junior year of your 4-year p

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Answer:

$85,000

Step-by-step explanation:

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3 years ago

Find the slope of the line passing through the points (-6, 7) and (7, 7).<br> slope: 0

Free_Kalibri [48]

Answer:

m=0

Step-by-step explanation:

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2 years ago

What would be equation would be perpendicular to p(1,3), y = 2x - 1?

Nutka1998 [239]

Thats the answer p=0
y=2.×-1

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2 years ago