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mixer [17]
3 years ago
11

Of the writting utensils in a bin, 5/8 are pens. of the pens, 3/4 are black pens. What fraction of the writting utensils are bla

ck pens?
A. 15/32

B. 20/24

C. 1/8

D. 15/24
Mathematics
1 answer:
ioda3 years ago
5 0

Answer:

A. 15/32 of the writing utensils are black pens

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Share £180 in the ratio<br> 1:9
Schach [20]

Answer:

18:162

Step-by-step explanation:

1:9

1+9=10

(1×180)÷10= 18

(9×180)÷10=162

4 0
3 years ago
Zara has forgotten her 4-digit PIN code.
djverab [1.8K]
800 different sets of digits


Since the first digit is a factor of 20, the factors of 20 are 1,2,4,5,10,20. We only need the single digit factors which are 1,2,4 and 5. These 4 numbers can be permuted in 1 way for the first digit, so we have ⁴P₁.
For the second digit, we have 10 digits permuted in 1 way, ¹⁰P₁ and also for the third digit, we have 10 digits permuted in 1 way, ¹⁰P₁ and for the last digit, which is divisible by 5, it is either a 0 or 5, so we have two digits permuted in 1 way, ²P₁.
So, the number of different 4 digit number that Zara'2 4-digit PIN code could be is ⁴P₁ × ¹⁰P₁ × ¹⁰P₁ × ²P₁ = 4 × 10 × 10 × 2 = 800 different sets of digits
4 0
2 years ago
Read 2 more answers
A bag of Halloween M&amp;M’s contains 4 orange, 5 brown and 6 yellow candies. Two candies are selected without replacement. Let
Montano1993 [528]
P(A)= 4+5+6= 15/2= 75%
P(B)= 6+4=10  5/10= 50%
P(C)= 5+4=9    6/9= 66.6%

4 0
3 years ago
In 3-way light bulbs, the highest wattage is the sum of the two lower ones. If the lowest is 60 watts, and the highest 150 watts
KatRina [158]
Since 150= 60 +x
x=110
8 0
3 years ago
Find the result when 5m+ 2 is subtracted from 9m.
lisabon 2012 [21]

Answer:

4m - 2

General Formulas and Concepts:

<u>Pre-Algebra</u>

  • Distributive Properties

<u>Algebra I</u>

  • Combining Like Terms

Step-by-step explanation:

<u>Step 1: Define</u>

9m - (5m + 2)

<u>Step 2: Simplify</u>

  1. Distribute negative:                    9m - 5m - 2
  2. Combine like terms:                   4m - 2
4 0
2 years ago
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