3 years ago

I need help with this pleasee

Mathematics

1 answer:

never [62]3 years ago

8 0

Answer:2 2/15

Step-by-step explanation:

4/5= 12/15

+1 1/3 =5/15

1 and 17/15

17/15= 1 and 2/15 +1= 2 and 2/15

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In the year 2000,there were 8.7 deaths per 1000 reidents in the United States.If there were 281,421,906 residents in the U.S.dur

bekas [8.4K]

$\frac{deaths}{residents} \: \frac{8.7}{1000} \: \frac{x}{281421906}$
Find the "difference" between the residents but division.

281421906/1000 = 281421.906
You always have to do the same to the top
8.7×281421.906 = 2,448,370.5822

There were 2,448,370.5822 deaths

Tell me if it helps!!

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3 years ago

The ratio of boys to girls at the dance was 8 to 4. How many girls were at the dance if there were 88 boys at the dance?

nevsk [136]

88/8=11.

So multiply 4 by 11.

4x11=44

So the ratio is 88:44.

There are 44 girls at the dance

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3 years ago

Bill has 15 fewer cards than joe . write an expression to find how many cards bill has... ???

Ganezh [65]

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3 years ago

HELP MATH NEED ASAP WILL GIVE BRAINLY TO CORRECT ANSWER!

rjkz [21]

1.the 2d chart is the best chose

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3 years ago

What are the real or imaginary solutions of the polynomial equation x*4-25=0

Paul [167]

Hello from MrBillDoesMath!

Answer:

Solutions: x = +\- 5i or x = +\- sqrt(5)

Discussion:

Factor x^4 - 25:

x^4 - 25 = (x^2+5) (x^2-5) => factor x^2 - 5

x^4 - 25 = (x^2+5)(x + sqrt(5)) (x - sqrt(5)) => factor x^2 + 5

x^4 = 25 = (x +5i)(x-5i) (x + sqrt(5)) (x - sqrt(5))

Hence the solutions are

x = +\- 5i and x = +\- sqrt(5)

Thank you,

MrB

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4 years ago