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artcher [175]
4 years ago
7

The school orchestra has 20 woodwinds, 20 brass instruments, 45 percussionists and 15 strings. Select the portion of the instrum

ents that are brass. Mark all that apply.
Mathematics
2 answers:
Alona [7]4 years ago
6 0

Find total instruments:

20+20+45+15 = 100

20 are brass

The portion would be number of brass over total:

20/100 which reduces to 1/5 are brass

Alenkasestr [34]4 years ago
4 0

Answer:

20% or 1/5

Step-by-step explanation: add all the instruments together and divide brass by all the instruments 20/100

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Answer:

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Step-by-step explanation:

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Answer:

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2 years ago
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schepotkina [342]

Answer:

Step-by-step explanation:

Similar figures have the same shape but the same size.

Moving from left to right:

The first figure is similar because it is rotated

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5 0
3 years ago
A man wants to make up 100 one-pound jars of nuts to sell for 66 cents a jar. He plans to use 40 pounds of nuts worth 75 cents a
zheka24 [161]

Answer:

x = 60 cents.

Step-by-step explanation:

The man wants to make up 100 one-pound jars of nuts, it means he will need 100 pounds of nuts. He plans to use 40 pounds of one type of nuts, so he needs 60 pounds of the other type of nuts to get 100 pounds.

Now, with this we can write a linear equation:

(40*0.75)+(60*x) = 100*0.66 (1)

Where:

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  • 0.66 is the unit price of 100 one-pound jars.

Let's solve the equation (1) for x:

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Therefore, x = 60 cents.

I hope it helps you!

7 0
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