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nataly862011 [7]
3 years ago
11

Hannah walked 1 3/4 miles in the morning and 3 2/3 miles in the afternoon. Hannah walked

Mathematics
2 answers:
Mamont248 [21]3 years ago
5 0

Answer:

4 11/12

Step-by-step explanation:

Musya8 [376]3 years ago
5 0

Answer: 5 5/15

Step-by-step explanation:

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Monique said the equation y=8.5x represents her summer babysitting earnings where x is the number of hours worked and y is the a
Ghella [55]

Answer:

8.5

Step-by-step explanation:

8.5 is the coefficient in front of x

5 0
3 years ago
Twelve pennies are arranged in a row on a table every other coin is replaced with a nickel then every third coin is replaced wit
IgorLugansk [536]
Out of every row you would get $.41 after you would multiply it by five and get $2.05
5 0
3 years ago
Compare using <, >, or =. 7 2/5___ 7 3/8
katrin [286]

Answer:

<

Explanation:

Step 1 - Convert the mixed numbers into decimals

7 2/5

2/5 • 20/20 = 40/ 100

40/ 100 = 0.4

0.4 + 7.0 = 7.4

Therefore, 7 2/5 = 7.4

Step 2 - Convert the mixed numbers into decimals

7 3/8

3/ 8 = 0.375

0.375 + 7.0 = 7.375

Therefore, 7 3/8 = 7.375

Step 3 - Compare

7.4 < 7.375

So, 7 2/5 is less than 7 3/8

8 0
4 years ago
Oil is pumped continuously from a well at a rate proportional to the amount of oil left in the well. Initially there were 3 mill
abruzzese [7]

Answer:

V' = -0.11552 *V\\= -0.11552(1.8)\\ \\=-0.20794 million per year

Step-by-step explanation:

Given that oil is pumped continuously from a well at a rate proportional to the amount of oil left in the well. Initially there were 3 million barrels of oil in the well; six years later 1,500,000 barrels remain.

i.e. if V stands for volume of oil, then

V' =kV\\dv/V= kdt\\ln V = kt+C\\V = Ae^{kt}

To find A and k

V(0) = A = 3 million

Hence V = 3e^{kt}

V(6) = 1.5

i.e. 1.5 = 3e^{6k}\\ln 1.5 =ln 3 +6k\\k = -0.11552

V(t) = 3e^{-0.11552t}

a) Using the above value of k , we have

V' = -0.11552 *V\\= -0.11552(1.8)\\ \\=-0.20794 million per year.

4 0
4 years ago
Amy and her family were traveling during their vacation. She looked at her watch at point 1 in the diagram below, and then again
Juli2301 [7.4K]

The unit rate of the car is simply the average speed of the car between the two points.

The unit rate of the car is 40 miles per hour

From the diagram (see attachment), we have:

  • The distance between the two points is: 80 miles
  • The time spent to cover this distance is: 2 hours

<h3>The unit rate</h3>

So, the unit rate is:

Rate = \frac{Distance}{Time}

This gives

Rate = \frac{80\ miles}{2\ hours}

Simplify the quotient

Rate = 40\ miles/hour

Hence, the unit rate of the car is 40 miles per hour

Read more about unit rates at:

brainly.com/question/4931057

8 0
3 years ago
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