PLEASE HELP DUE TODAY Brian bought 11 pounds of sugar for $7. How many

PLEASE HELP DUE TODAY Brian bought 11 pounds of sugar for $7. How many dollars did he pay per pound of sugar?

2 months ago

Solution 1

Guest Guest #5491479
2 months ago

Answer:

It is 7 devided by 11

0.6363636363

Step-by-step explanation:

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Step-by-step explanation:

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The area of a rectangular wall of a barn is 33 square feet. Its length is 8 feet longer than the width. Find the length and width of the wall of the barn, The width is feet.?
Solution 1

Answer:

Width = 3ft

Length  = 11ft

Step-by-step explanation:

Given parameters:

Area of rectangular wall  = 33ft²  

Unknown:

Length and width of the wall of the barn  = ?

Solution:

 So;

         Area of a rectangle  = length x width

Let the length  = L

            width  = W

           L  = 8 + W

       33  = (8 + W)W

       33  = 8W + W²  

         W² + 8W  - 33  = 0

          W² + 11W - 3W - 33  = 0

          W(W + 11)  - 3(W + 11)  = 0

           (W - 3)(W + 11)  = 0

    W - 3  = 0 or W + 11  = 0

So;   W = 3

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Keith and Sarah Robinson purchased 40 stamps, a mixture of 49 cent and 34 cent stamps. Find the number of each type of stamp if they spent $17.35.
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There are 2 equation. First let 49 cent stamps be f and 34 stamps be t. 
One equation would be f+t=40 the other one would be .49f+.34t=17.35. You can do substitution if you want or elimination. 
Put the two in line
49f+34t=1735
f+t=40----> elimination
-34(f+t=40)--> solve

49f+34t=1735
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---------------------
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f=25
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Answer:

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Step-by-step explanation:

Given parameters:

Number of present wrapped  = \frac{1}{3}presents

Time taken  = \frac{1}{9}hours

Unknown:

Rate  = ?

Solution:

To solve this problem ;

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The first three terms of an arithmetic sequence are as follows. 33, 25, 17 Find the next two terms of this sequence.
Solution 1

Answer:

The next terms of the sequence 33, 25, 17 is:

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Step-by-step explanation:

3, 25, 17...

An arithmetic sequence has a constant difference 'd' and is defined by  

a_n=a_1+\left(n-1\right)d

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The difference between all the adjacent terms is the same and equal to

d=-8

The first element of the sequence is:

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a_n=a_1+\left(n-1\right)d

a_n=-8\left(n-1\right)+33

a_n=-8n+41

Determining the 4th term:

We already got the nth term of the Arithmetic sequence

a_n=-8n+41

substitute n = 4

a_4=-8\left(4\right)+41

a_4=-32+41

a_4=9

Determining the 5th term:

substitute n = 5 in the nth term

a_n=-8n+41

a_5=-8\left(5\right)+41

a_5=-40+41

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Step-by-step explanation:

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A race car driver won a 300 mile race with a speed of 183.2 mph find the drivers time
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Answer:

The time taken by the driver is: t = 1.6 seconds

Step-by-step explanation:

Given

Distance covered by a race car = d = 300 mile

Speed of a car = s = 183.2 mph

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The time of the driver = t = ?

Using the formula to determine the time of the driver

distance = speed x time

d = st

t = d/s

substitute d = 300 and s = 183.2

t = 300 / 183.2

t = 1.6 seconds

Therefore, the time taken by the driver is: t = 1.6 seconds

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