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LiRa [457]
3 years ago
10

cheryl is organizing her movie collection. if each movie case is 3/4 inch wide, how many movies can fit on a shelf 5 feet wide?

Mathematics
1 answer:
xxTIMURxx [149]3 years ago
8 0

Answer:8

Step-by-step explanation:

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Please Help. 25 points. <br>​
vodomira [7]

Answer:

\boxed{x = 7, y = 9, z = 68}

Step-by-step explanation:

We must develop three equations in three unknowns.

I will use these three:

\begin{array}{lrcll}(1) & 8x + 13y +7 & = & 180 & \\(2)& 9x - 7 + 13y +7 & = & 180 & \\(3)& 8x + 5y - 11 + z & = & 180 &\text{We can rearrange these to get:}\\(4)& 8x + 13y & = & 173 &\\(5) & 9x + 13y & = & 180 & \\(6)& 8x + 5y + z & = & 169 & \\(7)& x & = & \mathbf{7} & \text{Subtracted (4) from (5)} \\\end{array}

\begin{array}{lrcll}& 8(7) + 13y & = & 173 & \text{Substituted (7) into (4)} \\& 56 + 13y & = & 173 & \text{Simplified} \\& 13y & = & 117 & \text{Subtracted 56 from each side} \\(8)& y & =& \mathbf{9}&\text{Divided each side by 13}\\& 8(7) + 5(9) + z & = & 169 & \text{Substituted (8) and (7) into (6)} \\& 56 + 45 + z& = & 169 & \text{Simplified} \\& 101 + z& = & 169 & \text{Simplified} \\&z& = & \mathbf{68} & \text{Subtracted 101 from each side}\\\end{array}

\boxed{\mathbf{ x = 7, y = 9, z = 68}}

4 0
3 years ago
Kyle leaves a 15% tip for lunch bill of $12 what amount tip does Kyle leave
Aleonysh [2.5K]
Kyle leaves 1.80 because you have to do 0.15*12
8 0
3 years ago
Read 2 more answers
What ordered pair is 5 units away from (-5,-3)
Neporo4naja [7]

Answer:

(0, 2)

Step-by-step explanation:

add 5 to -5 and -3

6 0
3 years ago
Sam wanted to buy candy for all of his friends to share at lunch. One pound of chocolates cost $6.95, but Sim only needs 0.6 of
OLga [1]

Answer:

The answer to your question is cost of 0.6 pound of candy $4.17

Step-by-step explanation:

Data

1 pound of candy = $6.95

only 0.6 pounds

final cost = ?

Process

1.- Use proportions to find the cost of 0.6 pounds of candy

               1 pound of candy -------------- $6.95

               0.6 pound of candy ----------   x

2.- Use cross multiplication

                 x = (0.6 x 6.95) / 1

3.- Simplification and result

                 x = $ 4.17          

5 0
3 years ago
Help help help help help help help
neonofarm [45]

Answer:

D= -16.8

Step-by-step explanation:

3 0
3 years ago
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