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3 years ago

(18x 5 + 6x 4 - 12x 3) ÷ 6x 2

Mathematics

2 answers:

Gnom [1K]3 years ago

8 0

Your answer would be 26.
if u want reasoning just ask!

astraxan [27]3 years ago

5 0

If I am reading this correctly but I might not because those could be x’s not times. If you follow PEMDAS(please excuse my dear aunt sally helps you remember) you start with parentheses then move to exponents then do you multiplication and Divison and addition and subtraction. So (18 x 5 + 6 x 4 - 12 x 3) you start there 18 x 5 is 90, 6 x 4 is 24, 12 x 3 is 36 so then add 90 +24 which is 114 and then minus 36 from 114. Which is 78. After all that go to 6 x 2 which is 12 from there you would have 78 divided by 12 which equals 6.5. Hopefully that helps but since I could tell if the they were x’s or times.

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ESTIMATE.137,638 +52,091

OverLord2011 [107]

In order to estimate this problem we must first estimate the two numbers involved.

137,638 rounds up to 138,000.

Since the 6 is bigger than 5 it makes the number 7 round up to 8

Now..

52,091 rounds out to 52,000

Since the number to the left of the 2 is not bigger than 5 then it stays the same at 52,000

Now we have to add our estimated numbers.

138,000 + 52,000 = 190,000

Your answer is 190,000

Good Luck! :)

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Dean Halverson recently read that full-time college students study 20 hours each week. She decides to do a study at her universi

romanna [79]

Answer: The p-value is 0.154.

Step-by-step explanation:

Since we have given that

We claim that

Null hypothesis :

$H_0:\mu=20$

Alternate hypothesis :

$H_1:\mu$

Population mean = 20 hours

Sample mean = 18.5 hours

Sample standard deviation = 4.3 hours

Sample size n = 35

So, test statistic would be

$z=\dfrac{\bar{X}-\mu}{\dfrac{\sigma}{\sqrt{n}}}\\\\z=\dfrac{18.5-20}{\dfrac{4.3}{\sqrt{35}}}\\\\z=\dfrac{-1.5}{0.726}\\\\z=-2.066$

So, the p value would be 0.154.

Hence, the p-value is 0.154.

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4 years ago

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kap26 [50]

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Answer:

5 containers
1/3 pound left over

Step-by-step explanation:

The amount Victoria needs is ...

(1/3 lb/burger) × 14 burgers = (1/3)(14) lb = 4 2/3 lb

The next higher multiple of 1 lb is 5 lb.

Victoria needs to buy 5 containers of tofu. There will be 1/3 lb left over.

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VladimirAG [237]

Answer:

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