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3 years ago

Need a quick answer please

Mathematics

1 answer:

Neko [114]3 years ago

8 0

I think it’s x=9
..........................

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Bruce walks 2/3mile in 1 .4hour. What is his speed in miles per hour? Show your work.

insens350 [35]

Answer:

10/21 or 0.476 miles per hour

Step-by-step explanation:

If you divide 2/3 by 1.4 (or 14/10), you will get miles per hour.

2/3 ÷ 14/10 = 2/3 x 10/14 = 20/42 = 10/21 = 0.476

4 0

3 years ago

If i make 30,000 a year how much is that a Hour?

Nat2105 [25]

30000÷365=82.1917808219÷24=3.42465753425 which is about $3.42 and hour.

5 0

3 years ago

What percent of 6y is 24?

ella [17]

Step-by-step explanation:

6y×100=24

600y=24

600y/600=24/600

y=4/100

y=0.04

3 0

2 years ago

Alice knows that 70% of the creatures in Wonderland are anthropomorphic animals. She randomly invites several of Wonderland’s in

Setler [38]

Answer: 0.0084

Step-by-step explanation:

Let p be the population proportion of the creatures in Wonderland are anthropomorphic animals.

As per given, p = 0.70

Sample size : n=120

Let $\hat{p}$ be the sample proportion of the creatures are anthropomorphic animals.

Now, required probability :

$P(\hat{p}>0.80)=P(\dfrac{\hat{p}-p}{\sqrt{\dfrac{p(1-p)}{n}}}>\dfrac{0.80-0.70}{\sqrt{\dfrac{0.70\times (1-0.70)}{120}}})\\\\P(\dfrac{\hat{p}-p}{\sqrt{\dfrac{p(1-p)}{n}}}>\dfrac{0.10}{\sqrt{\dfrac{0.70\times 30}{120}}})\\\\ =P(Z>\dfrac{0.10}{\sqrt{0.00175}})\ \ \ \ \ [Z=\dfrac{\hat{p}-p}{\sqrt{\dfrac{p(1-p)}{n}}}]\\\\ =P(Z>\dfrac{0.10}{0.04183})\\\\\=P(Z>2.39)\\\\=1-P(Z\leq2.39)\\\\=1- 0.9916= 0.0084$

Hence, the probability that more than 80% of the sampled inhabitants are animals= 0.0084

8 0

3 years ago

Express 42 minutes as a percentage of 5hours

Novay_Z [31]

Answer:

14%

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers