3 years ago

I need help with math ok! Don't Judge Me!!!!!!!!!!!

Mathematics

1 answer:

Digiron [165]3 years ago

5 0

Answer:

Step-by-step explanation:

12/? = 40/100

Butterfly method and we get 30

Also if 12 cats are 40 percent then that means that 24 cats would be 80 percent. And 6 cats would 20 percent. So 12 plus 12 plus six equals 30.

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Solving the expression $\frac{0.5x+7}{3}=\frac{21}{4}$ we get: $x=\frac{35}{2}\,\,or\,\,x=17.5$

Step-by-step explanation:

Solving the expression: $\frac{0.5x+7}{3}=\frac{21}{4}$

Solving by cross multiplying:

$\frac{0.5x+7}{3}=\frac{21}{4}\\(0.5x+7)*4=21*3\\Simplifying:\\2x+28=63\\Adding\,\,-28\,\,on\,\,both\,\,sides:\\2x+28-28=63-28\\2x=35\\Divide\,\,both\,\,sides\,\,by\,\,2\\\frac{2x}{2}=\frac{35}{2}\\x=\frac{35}{2}\,\,or\,\,x=17.5$

So, solving the expression $\frac{0.5x+7}{3}=\frac{21}{4}$ we get: $x=\frac{35}{2}\,\,or\,\,x=17.5$

Keywords: Solving Fractions

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