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3 years ago

Montrell went to the store to purchase a bag of flamin' hot Cheetos. One bag of chips was $3.39 for 9 oz. What is the unit rate?

Mathematics

2 answers:

castortr0y [4]3 years ago

5 0

Answer:

$0.37 per oz

Step-by-step explanation:

Unit rate

9 oz costs $3.39 and 1 oz of chips cost:

$3.39/9 = $0.37 per oz of chips

densk [106]3 years ago

4 0

Answer:

$0.37 per oz

Step-by-step explanation:

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Which expression is equivalent to 454•41/4 /1/2 4. 1/2

givi [52]

Answer:

Step-by-step explanation:

if you work inside parentheses first you get:

4^3/2 ÷ 4^1/2 which is 4

4^1/2 = $\sqrt{4}$ which is 2

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3 years ago

Dean Davids' home has a market value of $422.800. Davids lives in a county where the rate of assessment is 100 percent and the t

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Step-by-step explanation:

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3 years ago

Question 1,2, and 3 how do i factor those? Can you show the work and explain how?

DiKsa [7]

1: $3n^{2}+9n+6$

notice that each part is divisible by 3

$3n^{2}$ ÷ 3 = $n^{2}$

9n ÷ 3 = 3n

6 ÷ 3 = 2

so it becomes $3(n^{2} +3n+2)$

3n can be rewritten as 2n+n

-you want to rewrite it into two numbers that multiply to the number that's alone (in this case 2)

which would get you

$3(n^{2} +2n+n+2)$

Now that it's rewritten, you can factor out n + 2 from the equation.

the answer is

3(n+2)(n+1)

And you can check that by multiplying (n+2)(n+1) which is $n^{2} +2n+n+2$ and then each of those by 3, which is $3n^{2} +6n+3n+6$ or $3n^{2}+9n+6$ , our origional equation

2: $28+x^{2} -11x$

So I rewrote this as $x^{2} -11x+28$ (it's the same thing, just reordered using the commutative property)

now -11x can be rewritten as -4x-7x

(remember, the two numbers should multiply to equal 28, which is our constant.)

$x^{2} -4x-7x+28$

now we can factor out x from the first expression and -7 from the second

$x(x-4)-7(x-4)$

and lastly you factor out x-4,

which would give you

(x-4)(x-7)

Make sure to check your work and make sure it multiplies to $x^{2} -11x+28$

3: $9x^{2} -12x+4$

The first thing I notice when looking at this problem is that both 9 and 4 are perfect squares. Not only that, but they are the squares of 2 and 3, which are products of -12

So if you rewrite 9 as $3^{2}$ and 4 as $2^{2}$ , the equation becomes