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dedylja [7]
2 years ago
5

many ® Black pencils cost N75 each and coloured pencils cost N105 each. If 24 mixed pencils cost #2010, how of them were black?

(Hint: Let there be x black pencils. Thus there are 24 - x) coloured pencils.)​
Mathematics
1 answer:
laila [671]2 years ago
7 0

Answer:

85

Step-by-step explanation:

I hope my answer help you

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What is 5 times a number ,r, decreased by seven
Lapatulllka [165]

Answer:

5n - 7 < 23

Step-by-step explanation:

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Two glass containers are shown. Both are right rectangular prisms. Container 1 is filled with water and Container 2 is empty.
dmitriy555 [2]

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Answer:

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Step-by-step explanation:

The volume of each container is the product of its dimensions:

  V = LWH

We can let h represent the unknown height of Container 2. The volumes are equal when ...

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3 years ago
Somebody pls help me with this question pls
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292in^3
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vichka [17]

Answer:

  • B. The probability that the student received a grade better than C is 0.45

Step-by-step explanation:

<u>Total number of students:</u>

  • 15 + 30 + 35 + 16 + 4 = 100
<h3>Statements</h3>

A.

  • p(<D) = 4/100 = 0.04
  • 0.04 ≠ 0.2
  • Incorrect

B.

  • p(>C) = (30 + 15)/100 = 45/100 = 0.45
  • 0.45 = 0.45
  • Correct

C.

  • p(not A or B) = (100 - 15 - 30)/100 = 55/100 = 0.55
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  • Incorrect

D.

  • p(B or C) = (30 + 35)/100 = 65/100 = 0.65
  • 0.65 ≠ 0.35
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2 years ago
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