What is the decimal equivalent to 72%?

Mathematics

1 answer:

kvv77 [185]3 years ago

7 0

72% is equivalent to 0.72 as a decimal

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An item regularly priced at $80 is on sale for 20% off. There is a 3% sales tax. What will be the total cost of the item on sale

Salsk061 [2.6K]

80 - 20% = 64

Now we have to add the tax, so: 64 + 3% = $65.92

The answer should be $65.92.

I hope this helped,

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What is being done to the variable in the equation negative 5M = -40

Nataly [62]

Step-by-step explanation: In this equation, it's important to understand that the number 5 is the coefficient on the variable M. This just means that -5 "times" M equals -40. So, whenever you see a number next to a variable, it means multiplication.

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a store has a contest to guess the mass of 10,000 penuts. if a penut has a mas of about 0.45 gram, what would be a reasonable gu

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4 years ago

Solve x2 + 4x – 4 = 0

Damm [24]

Answer:

Quadratic Equations! Yes!

Step-by-step explanation:

Now, there are three methods to solving this:

1.Quadratic Formula

2.Factoring

3. Completing the square

Now, Based on the answers, I think it would be better if we used Quadratic Formula, as you cannot get the answer easily with factoring, and I'm a bit rusty on completing the square.

So, Quadratic Formula! To solve it using this method, we have to find x using this: $x=\frac{-b+-\sqrt{b^{2} -4ac} }{2a}$ (the +- before the square root means it could be both positive or negative)