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Debora [2.8K]
2 years ago
7

A medicine bottle contains 8 grams of medicine. One dose is 400 milligrams. How many milligrams does the bottle contain?

Mathematics
1 answer:
kompoz [17]2 years ago
8 0

Answer:

8×1000 milligrams

8000 milligrams

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David received a 20% tip on a bill of $86.40. how much was his tip?
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To find the tip of the bill. You will need to find how much of $86.40 is 20%. In this question, they're asking how much is the tip, not how much will the final price be.

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2 years ago
Use substitution process to find x,y,and z from the equations 2x+4y+3z=14 , y+3z=11 , z=4
katen-ka-za [31]

Work backwards.

Start with z = 4.

Now deal with the middle equation

y + 3z = 11                    Substitute z = 4 and solve for y

y + 3(4) = 11                  Subtract 12 from both sides

y + 12 = 11

y + 12 - 12 = 11 -12         Combine terms on the left and right

y = - 1                             Now use the top equation for x

z = 4                              z still = 4

2x + 4(-1) +3(4) = 14

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x = 6/2

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Answer

x = 3

y = - 1

z = 4  

6 0
2 years ago
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