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3 years ago

8

What % of $30 is $21?

2 answers:

PolarNik [594]3 years ago

4 0

Answer:

x/100 x 30 = 21 (solve for x) x =70

I wish I could explain more but if your just lazy to do this i wont explain but if you honestly dont know I will explain, so solve for x you must multiply by a 100 on both sides and on the right side you multiply it to the fraction so x/100 x 100 = x (variable by itself means 1) then 21 x 100 = 21,000 therefore you are left with 30x since you are multiplying x and 30 together then you will divide by 30 on both sides to get x = 70

Black_prince [1.1K]3 years ago

3 0

Answer:

70

Step-by-step explanation:

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2 years ago

The temperature of coffee served at a restaurant is normally distributed with an average temperature of 160 degrees Fahrenheit a

posledela

Answer:

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Step-by-step explanation:

We are given the following information in the question:

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$z_{score} = \displaystyle\frac{x-\mu}{\sigma}$

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