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Solnce55 [7]
3 years ago
11

Help!!!!!!!!!!!!!help

Mathematics
2 answers:
Lynna [10]3 years ago
7 0

Answer:

Brand A

Step-by-step explanation:

to find unit price divide the price by the amount,

brand A: 2.36/18=1.3<u>111 </u>

brand B: 4.09/24=1.7041<u>666 </u>

1.3 is less than 1.7 so brand a is better buy

(brand a)    (brand b)

Deffense [45]3 years ago
3 0

Answer:

13 cents, 17 cents, Brand A

Step-by-step explanation:

The unit price is the price of a single pencil. You can find that by dividing the total price by the number of pencils.

Brand A= $2.36/18= $0.13

Band B= $4.09/24= $0.17

0.13 < 0.17

Brand A is cheaper because the price per pencil is less.

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It took a submarine 30 seconds to sink 225 feet, moving at a constant speed. The captain wants to know the submarine's speed.
Vladimir [108]

Answer:

Speed per second= 7.5 feet per second

Step-by-step explanation:

Giving the following information:

We have a distance (225 feet), and a time (30 seconds). Also, we know that the speed was constant.

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3 years ago
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Step-by-step explanation:

6 0
2 years ago
−9x+4y=6 9x+5y=−33 ​
blsea [12.9K]

Answer:

{x,y} = {-2,-3}

Step-by-step explanation:

System of Linear Equations entered :

  [1]    -9x + 4y = 6

  [2]    9x + 5y = -33

Graphic Representation of the Equations :

   4y - 9x = 6        5y + 9x = -33  

Solve by Substitution :

// Solve equation [2] for the variable  y  

 

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// Plug this in for variable  y  in equation [1]

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  [1]    -81x/5 = 162/5

  [1]    -81x = 162

// Solve equation [1] for the variable  x  

  [1]    81x = - 162  

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   x = -2

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3 0
2 years ago
2/5 × 6/7= simplify form​
kirill115 [55]

Answer:

2 x 6 = 12

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12/35

Step-by-step explanation:

3 0
2 years ago
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