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3 years ago

a number is divided by 3 and the result is added to 1. the new result is doubled to give the final result 80. whats the number

Mathematics

1 answer:

Gnesinka [82]3 years ago

6 0

78, because you have to do the inverse operation so 80/2= 40 then 40-1= 39 and 39*3 = 78

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What can you say about the given and the grouping in [100•(-1)]•(-2) and 100• [(-1)• (-2)

denpristay [2]

I could say that they will give you different answers since they are the same numbers and are in the same order but are paired differently

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3 years ago

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Bad White [126]

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3 years ago

Cup G has a diameter of 4 in. and a height of 8 in. Find the volume of Cup G.

horsena [70]

Answer:

32pi

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5 0

3 years ago

Read 2 more answers

According to The Wedding Report, Inc., the mean cost for a wedding in the United States is $28732 (as of November 2008). Suppose

Stella [2.4K]

Answer:

Following are the solution to the given points:

Step-by-step explanation:

$X = \text{cost of wedding}\sim \text{Normal}\ (\mu = 28732, \sigma= 1500)\\\\$

For point a:

$Probability\ = 0.00000359\\\\ \text{(Using Excel function:} =NORMDIST(22000,28732,1500,1)).$

For point b:

$Probability \ = 0.014678\\\\\text{(Using Excel function:} =1-NORMDIST(32000,28732,1500,1))\\\\$

For point c:

$Probability\ = 0.794614436 \\\\$

$\text{(Using Excel function:} \\=NORMDIST (30000,28732,1500,1)-NORMDIST(25000,28732,1500,1))\\\\$

For point d:

$Q_1 = 27720.26537 \\\\\text{(Using Excel function:} =NORMINV(0.25,28732,1500)) \\\\Q_3 = 29743.73463 \\\\\text{(Using Excel function:} =NORMINV(0.75,28732,1500)).$

For point e:

$IQR = Q_3 - Q_1 = 29743.73463 - 27720.26537 = 2023.469251.$

For point f:

$Top\ 10\% = 30654.32735 \\\\\text{(Using Excel function:} =NORMINV(0.9,28732,1500)).$

5 0

3 years ago

ASAP ASAP ASAP SHOW WORK TOO !!!!!!!!!!!!!!! thanks soo much

k0ka [10]

A.
(64x<span>² + 96x + 36) / (16x + 12)
= 4(16x</span><span>² + 24x + 9) / 4(4x + 3)
= 4*(4x + 3)(4x + 3) / 4(4x + 3)
= 4x + 3

b.
1.79 x 10^5 = 1.79 * 100,000 = 179,000

c.
(5.9736 x 10^24) + (4.8685 x 10^24)
= (5.9736 + 4.8685) x 10^24
= 10.8421 x 10^24
= 1.08421 x 10^25</span>

4 0

3 years ago