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Lelu [443]
4 years ago
6

Evaluate the series

Mathematics
2 answers:
Keith_Richards [23]4 years ago
8 0

The answer to evaluate the series is:

<h2><u>26</u></h2>

Sav [38]4 years ago
3 0
Answer:

26.

Step-by-step explanation:

The given series is;

\sum_{n=1}^{4}(n+4).

This series is finite and has few number of terms.

We can rewrite the expanded form to get;

\sum_{n=1}^{4}(n+4)=(1+4)+(2+4)+(3+4)+(4+4).

\sum_{n=1}^{4}(n+4)=5+6+7+8.

\sum_{n=1}^{4}(n+4)=26.
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Trevor ran a race in 1 4/5 hours. He ran a total of 8 1/3 miles. How far did he run in one hour?
gulaghasi [49]

Answer:

4.63

Step-by-step explanation:

4/5 of an hour is 48 minutes

1 4/5 hour is 60 + 48

which is

108 minutes

he ran 8 1/3 miles in 108 minutes

so

(8 1/3 times 60 ) ÷ 108

which =

4.6296296296 miles in one hour

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3 years ago
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range-21

Step-by-step explanation:

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Where would you insert parentheses to make the statement true?
9966 [12]
Just around the 15 and 3. So it would be

(15-3)x4+9=57

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8 0
4 years ago
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the scale of a tower to its scale model is 1 meter 5cm . if the tower is 6 meters by 20 meters what are the dimensions of the sc
nikklg [1K]
1 m = 5 cm

6 m = 6 * 5 = 30 cm
20 m = 20 * 5 = 100 cm

dimensions are : 30 cm by 100 cm
8 0
3 years ago
Jean sold cupcakes and cookies yesterday. Each cupcake sold for $2.25 and each cookie sold for $0.50. At the end of the day, Jea
slega [8]

Answer:number of cupcakes sold is 13

Number of cookies sold is 27

Step-by-step explanation:

Let x represent the number of cupcakes that Jane sold.

Let y represent the number of cookies that Jane sold.

Each cupcake sold for $2.25 and each cookie sold for $0.50. At the end of the day, Jean had sold $42.75 worth of cookies and cupcakes.

This means that

2.25x + 0.5y = 42.75 - - - - - - - - - -1

she sold 40 cupcakes and cookies combined, it means that

x + y = 40

Substituting x = 40 - y into equation 1, it becomes

2.25(40 - y) + 0.5y = 42.75

90 - 2.25y + 0.5y = 42.75

- 2.25y + 0.5y = 42.75 - 90

- 1.75y = - 47.25

y = - 47.35/-1.75

y = 27

x = 40 - y

x = 40-27 = 13

.

4 0
4 years ago
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