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Valentin [98]
2 years ago
15

Michelle buys 13 bags of gravel for her fish aquarium. If each bag weighs 12 pounds,how many pounds of gravel did she buy?

Mathematics
2 answers:
dalvyx [7]2 years ago
4 0
13x12=156
156lbs of gravel.
yarga [219]2 years ago
3 0
13×12=156lbs of gravel
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Tanya [424]

Answer:

Graph number 1

Step-by-step explanation:

According to the equation the y-intercept is 2. The only graph with the y-intercept of (0,2) is the first graph. So, graph number 1 represents the function.

7 0
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A environmental initiative has the goal of saving at least 25 2525 million hectares of rainforest through both planting trees an
Anestetic [448]

Answer:

The possible way for the initiative to accomplish its goal without exceeding its budget is use 12.5 hectares for planting trees and 12.5 hectares by purchasing land.

Step-by-step explanation:

Let the variable <em>X</em> represent the amount of land used for planting trees and <em>Y</em> represent the amount of land purchased.

The goal of the environmental initiative is to save at least 25 million hectares of rain forest.

That is:

<em>X</em> + <em>Y</em> = 25....(i)

Now it is provided that:

  • The cost of planting trees is $ 400 per hectare.
  • The cost of purchasing land is $ 260 per hectare.
  • The initiative has a budget of $8,250 million.

Using the above data it can be said that:

400<em>X</em> + 260<em>Y</em> = 8250....(ii)

Solve equations (i) and (ii) simultaneously.

\ \ \ \ x+y=25]\times 260\\400x+260y=8250\\\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\\\\\Rightarrow\\\\260x+260y=6500\\400x+260y=8250\\(-)\_\_\_\_\_\ (-)\_\_\_\_(-)\_\_\_\\\\\Rightarrow\\\\-140x=-1750\\\\x=\frac{1750}{140}\\\\x=12.5

Then the value of <em>y</em> is:

x+y=25\\y=25-x\\y=25-12.5\\y=12.5

Thus, the possible way for the initiative to accomplish its goal without exceeding its budget is use 12.5 hectares for planting trees and 12.5 hectares for purchasing land.

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3 years ago
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natta225 [31]
For paws charges $20.50 and woof watchers charge $15.75
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A fish-tank has a length of 45 centimeters, a width of 25 centimeters and a depth of 10 centimeters.
kompoz [17]

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11250 cm^3

Step-by-step explanation:

45cm × 25cm × 10cm =11250cm

7 0
2 years ago
Please show me how you arrived at your answer
inn [45]

Answer:

x=-4

When x is -4, the y value (which is what the function spits out) is 8.

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