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Sergeeva-Olga [200]
2 years ago
6

PLEASE I NEED HELP ASAP THANK YOU :) <3

Mathematics
1 answer:
Ainat [17]2 years ago
7 0

Answer: -3

Step-by-step explanation:

The rate of change in a graph is the same as the slope. To find the slope, divide the change in y by the change in x. In this case, it's -9/3, which gets you -3.

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Using proportions, it is found that Donald should order 4 of the 0.05 gram tablets.

  • This question is solved by proportions, using a <em>rule of three</em>.
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The <em>rule of three</em> is:

1 tablet - x grams

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Applying cross multiplication:

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x = \frac{0.2}{4}

x = 0.05

Donald should order 4 of the 0.05 gram tablets.

For more on proportions, you can check brainly.com/question/24372153

7 0
2 years ago
What is 21/2 as a mixed number?
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Since a fraction is a form of division, you do 21/2=10 and 1/2.
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I WILL GIVE BRAINLIEST!!!
MrMuchimi

Answer:

Answer is after 20 miles

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10 = 3x-2.5x

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At 20 miles they both have a cost of 60

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