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4 years ago

Write an equation then solve the problem

Mathematics

1 answer:

denis-greek [22]4 years ago

7 0

Answer:

1. x+10=12 x = 2

2. 4 x -7 = x x = -28

3. x\15 = -4 x=60

4. 6 x x=-48 x=-8

5. 3 + (-9 + -11) = x x = -17

Step-by-step explanation:

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If your heart beats 80 times per minute and you live to be 90 years old, estimate the number of times your heart beats during yo

umka2103 [35]

The heart beat is given in units of beats per minute, therefore before we can do any calculations let us make sure that all units are similar by converting the age in terms of minutes.

We know that there are 365 days per year, therefore:

90 years (365 days / year) = 32,850 days

We know that in a day, there are 24 hours, therefore:

32,850 days (24 hours / day) = 788,400 hours

And in an hour, there are 60 minutes, therefore:

788,400 hours (60 minutes / hour) = 47,304,000 minutes

Now calculating for the total heart beats in a lifetime:

total heartbeats = (80 beats / minute) * 47,304,000 minutes

total heartbeats = 3,784,320,000

Writing this into scientific notation:

3.78 x 10^9 beats

<span>3.8 x 10^9 beats</span>

8 0

3 years ago

Joan wrote a linear function.

DiKsa [7]

Answer: look up true or false for the last answer but other than that th answer should be true

Step-by-step explanation:

8 0

3 years ago

Help..............................

stich3 [128]

4/5th i beleive..........

4 0

4 years ago

The height to the top of a flagpole is 18 feet. The flagpole casts a shadow of 20 feet, and a tree casts a shadow of 25 feet. Ho

ArbitrLikvidat [17]

Answer:

well if u take 20 divided by 18 its 1.1 repeating then if u take 25 and divide 25 by 1.1 u get 22.7

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers

Red Bull is the most popular energy drink in sales in the United States. Red Bull GmbH (the parent company) has observed that da

Mademuasel [1]

Answer: 3) 0.8493

Step-by-step explanation:

Given : Red Bull GmbH (the parent company) has observed that daily sales are normally distributed with an average of 7,421,143 drinks sold with a standard deviation of 6,974.621.

i.e.

$\mu = 7,421,143\\\\\sigma=6,974.621$

Let x denotes the daily sales .

Then, the probability that on a given day below 7,428,350 drinks are sold would be :

$P(X$

Hence, the correct answer is 3) 0.8493

4 0

4 years ago