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jeka57 [31]
4 years ago
6

You and your friend Sam are going to paint your 300 square feet room together.

Mathematics
1 answer:
Elza [17]4 years ago
4 0
Fraction that Sam painted in 1 min is:
10/25=2/5
Fraction that you painted in 1 min:
5/25=1/5

Fraction pained by both in 1 min:
1/5+2/5=3/5 ft²/min
Time taken to paint 50 ft² will be:
time=3/5×50=30 min
Thus we conclude that Sam was wrong.

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the percent p of the u.s. population with internet access is given by 25p-34t=1378 where t is the number of years after 1990. wh
Mashutka [201]

Answer:

  • Hence, 75.52 percent of the u.s. population had internet access in 2005.
  • After 25 years or in the year 2015 89% have internet access.

Step-by-step explanation:

the percent p of the u.s. population with internet access is given by:

25 p-34 t=1378

where t is the number of years after 1990.

  • We are asked to find  what percent of the u.s. population had internet access in 2005 i.e. we need to find the value of p after 15 years i.e. t=15.

⇒  25p-34×(15)=1378

⇒  25p-510=1378

⇒  25p=1378+510

⇒  25p=1888

⇒  p=75.52

Hence, 75.52 percent of the u.s. population had internet access in 2005.

  • Next we are asked to find in what year will 89% have internet access?

i.e. we have to find the value of t when we are given p=89

⇒  25×89-34t=1378

⇒  2225-34t=1378

⇒  2225-1378=34t

⇒  847=34t

⇒  or 34t=847

⇒  t=24.9112≈25

Hence after 25 years 89% will have internet access.

i.e. in the year 2015 89% will have internet access.



3 0
3 years ago
Three different units of measurement that could be used to identify area
vitfil [10]

Answer:

i hope it helps u........

8 0
3 years ago
Which equation shows y+15=3x in standard form?
julsineya [31]
You subtract 15 from both sides to turn the equation into y = 3x - 15.
3 0
3 years ago
Read 2 more answers
Question 10(Multiple Choice Worth 1 points)
dezoksy [38]

Step-by-step explanation:

Given that the set of data collected has an extreme value (24), a Median measure of center is more appropriate than a Mean measure.

We sort the same data collected in increasing order:

{0, 1, 2, 4, 4, 5, 5, 24}

There are 8 elements inside the set, so we check the 4th and 5th elements (closest to the center), which are 4 and 4.

Since they are equal, the Median is 4.

Our answer is Median; 4.

8 0
3 years ago
Read 2 more answers
Half-life for McGill-23 is 145 years. What is the k value?​
Paraphin [41]

Answer:

72.5

122

Step-by-step explanation:

Half-life for McGill-23 is 145 years. What is the k value?​

half of 145 = 72.5

145 - 23 = 122

Hope I did the right thing

Hope this helps ❤️

7 0
3 years ago
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