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Usimov [2.4K]
3 years ago
7

Fernanda has a collection of 200 seashells from corpus christi she gage her sister one-fifth of her collection how many seashell

s does she have left
Mathematics
1 answer:
Katarina [22]3 years ago
4 0

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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How to find a number to the nearest ten
yawa3891 [41]
If it’s above 5 it goes up if 4 or below goes down
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4 years ago
1. Which formula defines the sequence f(1)=2, f(2)= 6, f(3)= 10, f(4)= 14, f(5)= 18?
Natasha_Volkova [10]

Answer:

f(n) =4 + f(n-1) \\for\ n>2

Step-by-step explanation:

Given

f(1)=2\\ f(2)= 6\\ f(3)= 10\\ f(4)= 14\\ f(5)= 18

Required

Determine the formula

First, we need to solve common difference (d)

d = f(n) - f(n-1)

Take n as 2

d = f(2) - f(2-1)

d = 6 - 2

d = 4

Represent each function as a sum of the previous

f(1) = 2

f(2) = 2 + 4 = f(1) + 4

f(3) = 6 + 4 = f(2) + 4

f(4) = 10 + 4 = f(3) + 4

f(5) = 14 + 4 = f(4) + 4

Represent the function as f(n)

f(n) =f(n-1) + 4

Reorder

f(n) =4 + f(n-1) \\for\ n>2

7 0
4 years ago
I NEED HELP ASAP!!!!!!!!!!! One day, the temperature started at 14 degrees at 6:00 a.m., then climbed 5 degrees by noon, and the
ANTONII [103]
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3 years ago
To complete her holiday wrapping Bella needs identical strips of ribbon measuring 3.5 feet each she has 85 feet of ribbon in tot
Anon25 [30]

Answer:

She can cut 24 ribbon from this long strip.

Step-by-step explanation:

Given that,

Bella needs identical strips of ribbon measuring 3.5 feet each.

She has 85 feet of ribbon.

3.5 feet is length of 1 ribbon.

1    feet is length of \frac{1}{3.5} ribbon

85 feet is length of \frac{1\times 85}{3.5} ribbon

                              ≈24.28

\frac{85}{3.5}=\frac{85\times10}{35}=\frac{85\times2}{7}=\frac{170}{7}

7) 170(24

   14

_______

     30

     28

  ______

        2

So, she can cut 24 ribbon from this long strip.

5 0
3 years ago
What are the factors of 14 and 21
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14: 1,2,7,14
21: 1,3,7,21
6 0
4 years ago
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