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Greeley [361]
2 years ago
6

15 apples were equally among 5 children how many apples will each child get​

Mathematics
2 answers:
Genrish500 [490]2 years ago
7 0

Answer:

3 apples

Step-by-step explanation:

15/5 = 3

Butoxors [25]2 years ago
6 0

3

15 divided by 5 = 3

3 times 5 = 15

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I really need help please answer
belka [17]

Answer: Choice B) between 6:48 AM and 5:12 PM

=========================================================

Explanation:

I've seen this problem before, and the first part states that if the temperature is above 25 degrees C, then the air conditioner turns on to start cooling the castle.

We want to find values of t that satisfy f(t) > 25

This is the same as trying to solve f(t) - 25 > 0

So we have,

f(t) = 24 - 5\cos\left(\frac{\pi}{12}t\right)\\\\   f(t)-25 = 24 - 5\cos\left(\frac{\pi}{12}t\right)-25\\\\   f(t)-25 = -1 - 5\cos\left(\frac{\pi}{12}t\right)\\\\   f(t)-25 > 0\\\\ -1 - 5\cos\left(\frac{\pi}{12}t\right) > 0\\\\

To solve this inequality, we can graph using Desmos as I've done so below. See the attached image.

Note how I used x in place of t. This is because the graphing calculator graphs (x,y) coordinates.

Furthermore, note how I marked the two points (6.769, 0) and (17.231, 0)

Between these two points is when the curve is above the x axis, when f(t) > 25 is true. This is when the temperature is above 25 degrees C, and when the air conditioner is working.

When t = 6.769, this means that roughly 6.769 hours have passed since midnight which means we're somewhere between 6 am and 7 am. The only value that works from the answer choices is 6:48 AM.

Note how 0.769*60 = 46.14 is fairly close to 48. This error is likely due to how things are rounded.

Then focusing on the point  (17.231, 0) means that t = 17.231. So 17.231 hours have elapsed since midnight and we're now at roughly 1700 hours

1700 hours in military time = 17-12 = 5 pm

The time value t = 17.231 is between 5 pm and 6 pm. The only thing that works is 5:12 pm.

We can then note how 0.231*60 = 13.86 which is also probably due to rounding error (it's fairly close to 12 though).

--------------------------

In short, we found the function for f(t)-25 and graphed it as shown below. The two points (6.769, 0) and (17.231, 0) help us see when the AC is turned on, which is roughly between 6:48 AM and 5:12 PM. This seems like a reasonable time for the AC to be operational. Something like between 5:12 PM and 6:48 AM seems like a bad idea because the AC would be working mostly at night, instead of during the day.

Anything beyond t = 24 represents the next day, which is when the cycle starts all over again. So we only need to focus on the window from t = 0 to t = 24. Specifically, the portion of the f(t)-25 curve that is above the x axis.

8 0
3 years ago
Answer question 10 and 11 completely please
Katarina [22]
QUESTION 10:

- The long edge of the paper is 11 inches long
- The frame is 4 long edges long
4 times 11 = 44 inches.
Now for the feet calculation!
- 1 foot = 12 inches
44 inches divided by 12 inches is 3 2/3 feet.

RESULT:
Cameron's poster frame is 44 inches long and 3 2/3 feet (OR 3.66666667 feet).

QUESTION 11:

- First, convert 3 yards into feet.
- 1 yard = 3 feet
- 3 yards = 9 feet
- 9 feet plus 2 feet = 11 feet.
- Converting feet into inches means multiplying the number of feet by 12 (since every foot has 12 inches)
-11 feet times 12 = 132 inches.

RESULT:
Use my explanation to determine that 3 yards and 2 feet = 132 inches.
8 0
2 years ago
Can i have help with this please
marusya05 [52]

Answer:

a) Negative Correlation

b) Diagram C

c) Correlation c because it is a positive correlation

Hope this helps :)

Step-by-step explanation:

8 0
2 years ago
Solve 18x-17y=-8 this is linear equations slope intercept form
pantera1 [17]
<span>18x-17y=-8
17y = 18x + 8
    y = 18/17x + 8/17 ..............</span><span>slope intercept form</span>
8 0
3 years ago
Stephanie has five and seven-eighths pizzas. She shares four and one-sixteenths of the pizzas with her friends. Estimate how muc
stira [4]

Answer:

Step-by-step explanation:

Whether you want a meal quickly, you're throwing a party, or you've just got friends round to watch the game, pizza fits the bill every time. Most Americans certainly think so, with pizza being America's fourth most popular food choice and the average American enjoying twenty-three pounds of it every year. Use our Pizza Calculator to help you decide just how many pizzas you need to order for your party or gathering and you'll make sure you have enough for everybody – and you'll cut down on any waste from over-ordering too.

The free Pizza Calculator will look at the number of people you're entertaining, their appetites, and the size and type of pizza you want and tell you just how many you need to order.

Instructions:

Enter how many people will be eating

Select the size of their appetite

Choose the size and crust type of the pizza

If you wish, select

Click the "Calculate" button to get the number of pizzas you'll need to order.your pizza topping

3 0
1 year ago
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