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3 years ago

Kari bought 3 gallons of milk that cost 3.79 if she paid the cashier with a 20 bill how much change should Kari receive

Mathematics

2 answers:

ki77a [65]3 years ago

6 0

Cost of 3 gallons of milk =3.79

Amount Kari paid =20

difference =20-3.79 = 16.21

so she will receive 16.21 back

Nitella [24]3 years ago

4 0

Here the price of 1 gallon of milk is $3.79. SO price of 3 gallons of milk = 3.79 * 3= $11.37. But she gives the cashier $20 .

So to find the change Kari shoul receive, we need to subtract the price of 3 gallons of milk from $20 = 20 -11.37 = $8.63 .

THerefore Kari receive $8.63 as change from cashier .

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Read 2 more answers

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The y-intercept represents that when the biologist started her study, the radius of the algae was five millimeters.

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The average rate of change from d = 4 to d = 11 was about 0.11. This means that from the 4th day to the 11th, the radius of the algae grew, on average, at a rate of 0.11 mm per day.

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So, the biologist concluded her study after 12 days.

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The y-intercept of the function is when d = 0. Find the y-intercept:

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Part 3)

To find the average rate of change for a nonlinear function, we find the slope between the two endpoints on the interval.

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Find the endpoints:

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And find the slope between them:

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Since f(d) measures millimeters and d measures days, this tells us that, on average, the radius of the algae grew by about 0.11 mm per day from the 4th day to the 11th day.

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