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3 years ago

Helpppppppppppppp meeee!!!!

Mathematics

1 answer:

Oduvanchick [21]3 years ago

4 0

The answer is 10 days

(after 4 days, they still needed to install 360 chairs, 600-360=240 - meaning they installed 240 chairs in 4 days. to find out how many chairs they installed in 1 day, divide 240 by 4 and you find they installed 60 chairs per day. Then divide 360 by 60 to find the remaining days needed to install the rest of the chairs, which is 6 days then add it onto the 4 days already completed)

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A student wants to check six websites. Four of the websites are social and two are school-related. After checking just two sites

mash [69]

The approximate probability that she checked a social website first, then a school-related website is 0.267.

First step is to calculate the Total number of websites

Total number of websites=Number of school websites+Number of social websites

Total number of websites=2+4

Total number of websites=6

Second step

Probability of checking the social website first

Probability of checking social website=Number of social websites/Total number of websites

Probability of checking social website= 4/6

Third step

Since one social website is checked which means that she is left with 3 social website and 2 school websites

Total number websites=2+3

Total number websites=5

Forth step

Probability of checking social website=Number of school websites/Total number websites

Probability of checking social website=2/5

Fifth step

Probability= 4/6 x 2/5 = 0.2666

Probability=0.267(Approximately)

Inconclusion the approximate probability that she checked a social website first, then a school-related website is 0.267.

Learn more about probability here:brainly.com/question/25688842

6 0

3 years ago

H(x) = -0.5x16 + 14x2 – 2 + 254

stealth61 [152]

Answer: 14 squared divided by 17 over 14 squared divided by 2 is a local maximum

3 0

3 years ago

pleasee help me,A train travels from station P to station Q at a speed of 90km/h in 3hours 40minutes.The train stops at station

nataly862011 [7]

I think it may be that the train is going too fast zoom km 1600 km at the end

5 0

3 years ago

7. Calculate Rock A contains

Salsk061 [2.6K]

Answer:

45% of the rock is mica

Step-by-step

10% + 45% = 55%. 100% - 55% = 45%

3 0

3 years ago

What is the distance between points (5, 13)

horrorfan [7]

You are going to treat this as a triangle so one side is 13 units long and the other is 22. And using the pythagorean theorem a²+b²=c².

13²+22²=c²

169+484=c²

653=c²

√653=√c²

25.55386...=c

Or, rounded to the nearest hundredth, 25.55

7 0

3 years ago