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LiRa [457]
4 years ago
14

(4.27x108) (9.2x10-5)

Mathematics
1 answer:
Vedmedyk [2.9K]4 years ago
4 0
What are the answer choices??
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Fernanda has a collection of 200 seashells from corpus christi she gage her sister one-fifth of her collection how many seashell
Katarina [22]

Answer: 160

Step-by-step explanation: She gave her sister one fifth of the collection; one fifth written as a percent is 20% (I did one and divided it by five). To turn 20% to a decimal I didved by 100 to get 0.20. I multiplied 200 and 0.20 and got 40. 40 is the amount of shells given to her sister, so you would subtract 40 from 200 to find how many shells were left. 200-40=160.

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3 years ago
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Step-by-step explanation:

8 0
3 years ago
Nina has some nickels and 9 pennies in her pocket. Her friend, Maurice has twice as many nickels as Nina. Together these coins a
algol13

So Maurice would have 2N nickels  

Total number of coins is N + 2N + 9 = 3N + 9  

Each nickel is 5 pennies  

3N of nickels = 15N pennies  

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Their worth is 84 cents  

15N + 9 = 84  

15N = 75  

N = 75/15 = 5  

N = 5  


This means Nina has 5 nickels.

4 0
4 years ago
2x+2y=8<br> X+y=4<br> Which statement is true about the solution
laila [671]
Both x and y equal 2.

2•2=4 + 2•2=4

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2+2=4
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What is the ratio of red to blue cars there were 32 red cars and 16 blue cars
Rufina [12.5K]

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2:1

32:16 is 2:1

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3 years ago
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