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Artyom0805 [142]
3 years ago
10

If cheese is $4.40 per kg, what should I pay for 200 g?

Mathematics
1 answer:
Dvinal [7]3 years ago
3 0
1kg = 1000g
1000g/5g= 200g
4.40/5 = 0.88

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What is the first step in simplifying the expression 11x-2-3(1-7x)^2+(x+1)?
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Answer:

PEMDAS is a great way to figure this out!

P - Parenthesies

E - Exponents

M - Multiplcation

D - Division

A - Addition

S - Subtraction

Follow this order and you should be good to go! Here's how I would follow this in this equation.

11x-2-3(1-7x)^2+(x+1)

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-3*1  and -3*-7x (don't forget the negative)

This gives us 11x-2+(-3+21x)^2+(x+1)

Now distribute the exponents to everything inside of the parentheses.

11x-2+-3^2+21x^2+(x+1)

now solve the numbers with exponents without a variable.

3^2 = 3*3 = 9

combine any numbers without a variable outside of parentheses

11x-2+9+21x^2+(x+1)

11x+7+21x^2+(x+1)

From here, what I would do is divide the whole equation by 2

5.5x+3.5+21x+(.5x+.5)

now combine x values outside of parentheses

3.5+26.5x+(.5x+.5)

I believe this would be the simplest form, but please do correct me if I'm wrong or made any errors

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Alekssandra [29.7K]

Answer:

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Step-by-step explanation:

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applying the properties in the given equation

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or

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