$\frac{375}{12,500}\\\\divide\ a\ numerator\ and\ a\ denominator\ by\ 125\\\\375:125=3\\\\12,500:125=100\\\\therefore\\\\\frac{375}{12,500}=\frac{3}{100}=0.03$

6 0

3 years ago

All of the students of Music High School are in the band, the orchestra, or both. 80 percent of the students are in only one gro

il63 [147K]

Answer:

Option B.

Step-by-step explanation:

It is given that all of the students of Music High School are in the band, the orchestra, or both.

Students only one group = 80%

Students in both groups = 100%-80% = 20%

Students in band only = 50%

Students in band = Students in band only + Students in both groups

= 50% + 20% = 70%

Students in orchestra only = 100% - 70% = 30%

There are 119 students in the band.

Let total number of student be x.

$70\% of x=119$

$\dfrac{70}{100}x=119$

$0.7x=119$

$x=170$

Total number of students is 170.

We know that 30% of all students are in orchestra only.

$170\times \dfrac{30}{100}=51$

Therefore, the correct option is B.

5 0

4 years ago

A painter takes hours to paint a wall. How many hours will the painter take to paint 8 walls if she works at the same rate?

Mkey [24]

Answer:

20.8 hours

Step-by-step explanation:

2 3/5 = 2.6.The painter will take (2.6 × 8) = 20.8 hours to paint a wall.

Hope this helps and pls mark as brianliest :)

7 0

3 years ago

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