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Ksivusya [100]
2 years ago
15

Please help! will mark brainliest

Mathematics
1 answer:
viva [34]2 years ago
3 0

Answer:

i think its a or d

Step-by-step explanation:

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The questions are on the attached screenshot file.
Makovka662 [10]
Look at the ss down below
4 0
3 years ago
Read 2 more answers
Sheila, janice, and katen, working together at the same rate, can complete a job in 3 1/3 days. Working at the same rate, how mu
pychu [463]

Answer:

Janice and Karen could do in 1 day:

  • <u>20% of the job</u>.

Step-by-step explanation:

To identify how much of the job could janice and caren do in 1 day, first, we must find how much of the job make just 1 person at the same rate:

If three persons make a job in 3 1/3 days, 1 person make the job in x:

  • 3 persons ⇒ 3 1/3 days or 10/3 days
  • 1 person ⇒ x

Then:

  • x=\frac{1 person*\frac{10}{3}days }{3 persons} (we cancel the unit "persons")
  • x=\frac{\frac{10}{3}days }{3}
  • x = 10 days

Just a person would need 10 days to complete a job, now, we're gonna divide this value in 2 to obtain the time that need two persons to complete a job:

  • Time to complete a job between 2 persons = \frac{10}{2}days
  • Time to complete a job between 2 persons = 5 days

How two persons need 5 days to complete a job (in this case, the two persons are Janice and Karen), we can make a simple rule of three to obtain the percentage made in 1 day:

  • 5 days ⇒ 100% of a job
  • 1 day ⇒ x

Then:

  • x=\frac{1*100}{5} (you can use the % if you want, the result is the same)
  • x=\frac{100}{5}
  • x=20

As you can see, <u><em>Janice and Karen just in a day could do 20% of the job</em></u>.

3 0
3 years ago
A random sample of 50 students from a high school with 900 students is surveyed. Each student is asked what science class he or
strojnjashka [21]

Answer: 50 and 900 is correct

Step-by-step explanation:

50 and or 100

4 0
2 years ago
If a tree diagram were drawn to determine the number of possible outcomes when choosing one of 3 shirts, one of 8 ties, and one
Orlov [11]
It should be D, 96.  3 x 8 x 4 = 96
5 0
3 years ago
Round 8,937.2546 to the nearest<br> hundred.
xeze [42]

Answer:

8,900

Step-by-step explanation:

Given Number: 8,937.2546

Determine the two consecutive multiples of 100 that bracket 8,937.2546

8,937.2546 is between 8,900 and 9,000

8,950 is the midpoint between 8,900 and 9,000

As illustrated on the number line, 8,937.2546 is less than the midpoint (8,950)

Therefore, 8,937.2546 rounded to the nearest hundred = 8,900

6 0
2 years ago
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