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jek_recluse [69]
2 years ago
11

4 A game is being watched by 60 adults and some

Mathematics
1 answer:
Vladimir79 [104]2 years ago
5 0

Answer:

20 children.

Step-by-step explanation:

We can solve this using an equation or simple mental math:

The equation: x=children x+20=adults

x + (x+20) = 60

2x + 20 = 60

2x = 40

x = 20

Mental Math: 40 plus 20 is 60 and 40 is 20 more than 20 so there are 40 adults and 20 children.

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3 years ago
24÷2²(-3)-7-2²-2(3-6) step by step please and thank you!​
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Answer:

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Step-by-step explanation:

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8 0
3 years ago
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Mark and Don are planning to sell each other their marble collections at a garage sale. If Don has 1 more than 3 times the numbe
Volgvan

Answer: Mark has 28 marbles while Don has 85 marbles.

Step-by-step explanation:

Let x represent the number of marbles that Mark has.

Let y represent the number of marbles that Don has.

If Don has 1 more than 3 times the number of marbles Mark has, it means that

y = 3x + 1

The total number of marbles is 113. It means that

x + y = 113- - - - - - - - - - - - 1

Substituting y = 3x + 1 into equation 1, it becomes

x + 3x + 1 = 113

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4 years ago
PLEASE HELP REALLY APRICATE IT
zaharov [31]
It should be 92 sorry if its wrong
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3 years ago
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5.4 x 10^4... Hope this helped!
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