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3 years ago

I need help asap!!

2 answers:

eduard3 years ago

8 0

because we have to find the total cost of one pound of the mixture, therefore first we will calculate the total cost of cashews and Peanuts and than we will divide the total cost by the total weight.

step by step solution:

cost of 4 pounds [email protected]$ 4/pound = 4 x 4= $16

cost of 4 pounds of peanuts @$2.50/pound = 4 x 2.50= $10.00

Now total cost= $16+$10= $26

now total weight= 4+4=8 pounds

Then cost of 1 pound of mixture= total cost÷ total weight

cost = 26÷8= 3.25

so answer is $3.25

klasskru [66]3 years ago

6 0

Answer: $3.25

Step-by-step explanation:

First you need to calculate the cost of the 8 pounds of nuts.

Cashews = 4 x $4 = $16

Peanuts = 4 x $2.50 = $10

The total cost of 8 pounds of nuts equals $16 + $10 = $26

In order to calculate the cost of 1 pound of the mixture you need to divide the total cost by the total weight.

$26 / 8 lbs = $3.25 / lb

The cost of one pound of the mixture is $3.25.

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Step-by-step explanation:

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3 years ago

A rectangular piece of metal is 20 in longer than it is wide. Squares with sides 4 in long are cut from the four corners and the

Misha Larkins [42]

Answer:

Step-by-step explanation:

This is good! The length of the metal is 20 inches longer than the width. But we fold up 4-inch flaps on each side, so the height of the box is 4 inches, and the length and width will each decrease by 8 inches (4 inches on each side). Since the length and width decrease by the same amount, the length will still be 20 inches longer than the width. So the equations would be:

l = w + 20

vol = l x w x h = 1716 in3

1716 = (w + 20)(w)(4)

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4w2 + 80w - 1716 = 0

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4(w + 33)(w - 13) = 0

w + 33 = 0, so w = -33

w - 13 = 0, so w = 13

Since the width can't be negative, the width of the box is 13 and the length is 33 (13 + 20).

But remember, the length and width of the piece of metal are each 8 inches longer than the box, so it was 41 inches by 21 inches.

7 0

3 years ago

The total revenue from the sale of a popular book is approximated by the rational function, R(x)=1100x^2/x^2 + 4 where x is the

vazorg [7]

Answer:

The answer is below

Step-by-step explanation:

The total revenue from the sale of a popular book is approximated by the rational R(x) = 1100x^2/x^2 + 4, where x is the number of years since publication and the total revenue in millions of dollars. Use this function to complete parts a through d. (a) Find the total revenue at the end of the first year. $ million (b) Find the total revenue at the end of the second year. $ million (c) Find the domain of function R. Choose the correct domain below. {x | x is a real number and x greaterthanorequalto 0} {x | x is a real number and x lessthanorequalto 5} {x | x is a real number and x notequalto 2, x notequalto 5} {x | x is a real number and x notequalto 2}

Solution:

Revenue is the total money made from the selling of a product or item.

a) Given the revenue function:

$R(x)=\frac{1100x^2}{x^2+4}$

At the end of the first year (i.e. x = 1), the venue is given as:

$R(1)=\frac{1100(1)^2}{(1)^2+4} =220\\\\R(1)=\$ 220\ million$

b) At the end of the second year (i.e. x = 2), the venue is given as:

$R(2)=\frac{1100(2)^2}{(2)^2+4} =220\\\\R(2)=\$ 550\ million$

c) The domain of the function is the value of the denominator for which the value of the denominator is not zero

x² + 4 ≠ 0

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3 0

3 years ago

402 = 2 x 3 x ____<br> help!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Westkost [7]

Answer:

Step-by-step explanation:

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3 years ago

What are the domain and range of the function x^2-2x^2-4?

jonny [76]

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For the range, start from minimum value to maximum value.

But because the parabola is downward as a < 0. Thus, there are no minimum value but the maximum value instead.

Therefore the range is y <= -4

7 0

3 years ago