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gladu [14]
3 years ago
5

Two fifths of the instruments in the marching band are brass, one third are woodwinds. One eighth of the brass instruments are t

ubas. If there are 240 instruments in the band, how many are tubas?
Mathematics
1 answer:
Rom4ik [11]3 years ago
3 0
Do 11/24 + 2/5. then subtract your answer from 240
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You and your best friend go out to dinner. The server was so good that you want to leave a 20% tip. Your food bill was $25.50. W
lys-0071 [83]

Answer:

$5.10

Step-by-step explanation:

We need to find 20% of 25.50

Multiply 20% * 25.50

Change to a decimal

.20 *25.50

5.10

6 0
3 years ago
What is the slope of the line determined by the cordinates (2,3) and (-6,-4)
KIM [24]
Slope equals the change in y over change in x, or rise over run.

-4-3 / -6-2
-7/-8
7/8

Final answer: 7/8
3 0
3 years ago
Chu-Li has $100 in her piggy bank. How much will she have in her bank 40 weeks from now if she puts $1 in the bank next week, $2
BigorU [14]

Answer:

  $920

Step-by-step explanation:

The amounts added are the arithmetic sequence ...

  1, 2, 3, ... 40

The average term of this sequence is (1 +40)/2 = 20.5. The sum of the terms of this sequence is the number of terms (40) multiplied by the average term (20.5). That product is ...

  40·20.5 = 820

Chu-Li will have added $820 to her bank in 40 weeks, so the total there is ...

  $100 +820 = $920 . . . amount Chu-Li will have 40 weeks from now

6 0
3 years ago
Suppose a lake contains blue and green algae. The blue algae has an initial mass of 20 kg and doubles its mass every hour. The g
loris [4]

Answer:  1) D

2) C

Step-by-step explanation:

1. The blue algae has an initial mass of 20 kg and doubles its mass every hour. Then after t hours, the mass of blue algae is

2. The green algae has an initial mass of 160 kg and grows at a constant rate of 0.20 kg per minute. Then after t hours (60t minutes), the mass of green algae is

Part I) At t=3:

The mass of green algae has 196-160=36 kg more mass at 3 hours.

Part II) At t=4:

The blue algae has 320-208=112 kg more mass at 4 hours.

6 0
2 years ago
Which two types of income does a person in a full-time sales job usually receive?
katovenus [111]

Answer:

hourly pay & commission

Step-by-step explanation:

Full time sales jobs typically pay their employees an hourly pay and then a commission on what they sell.

8 0
3 years ago
Read 2 more answers
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