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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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Katen [24]
I believe it's a solution
6 0
3 years ago
Robert makes 50 litres of green paint by mixing litres of yellow paint and litres of blue paint in the ratio 2:3.
podryga [215]

Answer:

  • 35%

Explanation:

<u>1. Cost of each liter of yellow paint:</u>

Yellow paint is sold in 5 litre tins and ach tin costs £26, thus the cost of one liter is £26 / 5 liters = £5.2 per liter.

<u>2. Cost of each liter of blue paint:</u>

Blue paint is sold in 10 litre tins and each tin costs £48, thus the cost of one liter of blue paint is £48 / 10 liters = £4.8 per liter

<u>3. Cost of each liter of green paint.</u>

Green paint is made by mixing yellow paint and blue paint in the ratio 2:3

Thus, 5 liters of green paint will cost:

2 liters yellow paint: 2 liter × £5.2 / liter = £10.4

3 liters blue paint:     3 liter × £4.8 / liter = £14.4

                                 ==========              ========

5 liters green paint:   5 liter                        £24.8

Cost of one liter of gree paint: £24.8 / 5 liter = £4.96 / liter

<u>4. Profit</u>

Price of each liter of green paint: £66.96 / 10 liters = £6.696 / liter = £6.70 / liter

Profit per liter = price per liter - cost per liter = £6.70/liter - £4.96 / liter = £1.74 / liter

Percentage profit = profit per liter / cost per liter × 100

Percentage profit = (£1.74 / liter) / (£4.96/liter) × 100 =  35.08% = 35%

4 0
3 years ago
How to order the following fractions<br><br> 3/4 9/16 3/16 7/8 3/8
Dimas [21]
Comparison of fractions is easiest when they all have a common denominator, in this case we can make them all have a common denominator of 16...

12/16, 9/16, 3/16, 14/16, 6/16 so from least to greatest...

3/16, 3/8, 9/16, 3/4, 7/8
7 0
3 years ago
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6x+12y+5+2y+8 what’s the coefficient of y and what’s the constant
Rudik [331]

The coefficient of y is 14 and the constant is 13.

You can find this by combining like terms first.

6x + 12y + 5 + 2y + 8

6x + 14y + 5 + 8

6x + 14y + 13

Now the coefficient is the number next to y. The constant is the number on its own.

4 0
3 years ago
What is the circumference of a circle that has the radius of 3cm​
dexar [7]

Step-by-step explanation:

Circumference of a circle is 2piR

Here R is 3 cm

So C=2pi(3)

C=6pi cm

5 0
3 years ago
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