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padilas [110]
3 years ago
15

Help me please. I dont get this.

Mathematics
1 answer:
SpyIntel [72]3 years ago
8 0

Answer:

6. 19 candles

7. 6 pills

Step-by-step explanation:

6.  If a particular candle burns for 2 3/4 hours (=2.75) and you want to use similar candles to burn one at a time over 10 days for 5 hours each day, find the total number of hours:  10 x 5 = 50 hours.  Then, divide by the amount of time it takes for one candle to burn: 10÷2.75 = 18.18.  Since the answer is a decimal, you will need to round to the next whole number = 19 candles.

7.  Given the rules that no more than three pills may be taken in a four-hour period and each pill must be taken 1 1/2 hours (=1.5) apart, you can take the total number of hours (10) and divide by the time between each pill (1.5):

10 ÷ 1.5 = 6.7

Since you won't take part of a pill, the most you can take is 6 and because the intervals are 1.5 hours, 1.5 + 1.5 + 1.5 = 4.5, you will not have taken more than 3 in any four hour period.

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7 0
3 years ago
50 POINTS
mamaluj [8]

Answer:

The answer is below

Step-by-step explanation:

The linear model represents the height, f(x), of a water balloon thrown off the roof of a building over time, x, measured in seconds: A linear model with ordered pairs at 0, 60 and 2, 75 and 4, 75 and 6, 40 and 8, 20 and 10, 0 and 12, 0 and 14, 0. The x axis is labeled Time in seconds, and the y axis is labeled Height in feet. Part A: During what interval(s) of the domain is the water balloon's height increasing? (2 points) Part B: During what interval(s) of the domain is the water balloon's height staying the same? (2 points) Part C: During what interval(s) of the domain is the water balloon's height decreasing the fastest? Use complete sentences to support your answer. (3 points) Part D: Use the constraints of the real-world situation to predict the height of the water balloon at 16 seconds.

Answer:

Part A:

Between 0 and 2 seconds, the height of the balloon increases from 60 feet to 75 feet  at a rate of 7.5 ft/s

Part B:

Between 2 and 4 seconds, the height stays constant at 75 feet.

Part C:

Between 4 and 6 seconds, the height of the balloon decreases from 75 feet to 40 feet at a rate of -17.5 ft/s

Between 6 and 8 seconds, the height of the balloon decreases from 40 feet to 20 feet at a rate of -10 ft/s

Between 8 and 10 seconds, the height of the balloon decreases from 20 feet to 0 feet at a rate of -10 ft/s

Hence it fastest decreasing rate is -17.5 ft/s which is between 4 to 6 seconds.

Part D:

From 10 seconds, the balloon is at the ground (0 feet), it continues to remain at 0 feet even at 16 seconds.

3 0
4 years ago
What is the slope of the line that contains the points (-2, 2) and (3, 4)?
Vladimir79 [104]

Answer:

2/5

Step-by-step explanation:

The slope is given by

m= (y2-y1)/(x2-x1)

  = (4-2)/(3 - -2)

   = 2/(3+2)

    = 2 /5

5 0
3 years ago
Read 2 more answers
how fast would 1.5 times the faster rowing speed be? before you solve tell the number of decimal places on your answer PLZ HELP
AleksAgata [21]

How far are you rowing?

If your rowing speed is 1.5 times faster your going about 16 miles up to 2 hours in the river

Sorry if this is wrong-

~zaro~

5 0
3 years ago
BRAINLEST<br>what is the value of the function at x=2​
BARSIC [14]

Answer:

y = - 3

Step-by-step explanation:

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The value of the function at x = 2 is y = - 3

3 0
3 years ago
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