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Zigmanuir [339]
3 years ago
14

What is the sum of the series?

Mathematics
1 answer:
igomit [66]3 years ago
3 0
\bf \sum\limits_{n=1}^{20}~5-n\implies \sum\limits_{n=1}^{20}~5~~-~~\sum\limits_{n=1}^{20}~n\implies 20\cdot 5~~-~~\cfrac{20(20+1)}{2}
\\\\\\
100~~-~~210\implies -110
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What is the distance around this rectangle 12 4/5 inches 2 1/8 inches
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4. Sam's parents are teachers who commute 45 miles roundtrip to work 5 2 days a week. His parents spend $38 on gasoline each wee
Marat540 [252]
<h2>Answer:</h2><h2>The correct option is d. (i) and (ii)</h2>

Step-by-step explanation:

The total miles covered per day = 45

No of commuting days in a week = 5

Total miles in a week = 45 * 5 = 225

The total amount spent on gasoline = $ 38

Cost of gasoline per gallon = $ 2.48

The number of gallons consumed per week = \frac{38}{2.48} = 15.32 gallons of gasoline per week.

This confirms (ii) statement

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This confirms (i) statement

The number of miles per gallon of gasoline = \frac{225}{15.32} = 14.68 miles

The statement (iii) is false.

7 0
2 years ago
3.873... express in p/q form
Lemur [1.5K]
387/100
p/q formula

The theorem states that each rational solution x = p⁄q, written in lowest terms so that p and q are relatively prime, satisfies: p is an integer factor of the constant term a0, and.
7 0
2 years ago
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