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vlabodo [156]
2 years ago
9

What is the sum of the reciprocals of all of the positive integer factors of 18? Express your answer as a common fraction.

Mathematics
1 answer:
AlexFokin [52]2 years ago
4 0

Answer:

39/18 = 13/6 = 2 1/6

Step-by-step explanation:

factors are 1,2,3,6,9,18

so the reciprocals are

1/1, 1/2, 1/3, 1/6, 1/9, 1/18

when added the sum is 39/18 or 2 1/6

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-6 + 2 = -4
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6 0
3 years ago
The L.L. Bean men’s cotton chambray shirt comes in the following colors: blue, stone, rust, green, plum, and indigo. In addition
bulgar [2K]

Answer:

<u>60 types of cotton chambray shirts can be produced</u>

<u />

Step-by-step explanation:

The shirt comes in the following colors: blue, stone, rust, green, plum, and indigo

<u>Number of colors the shirt comes in = 6</u>

The shirt comes in the following sizes: small (S), medium (M), large (L), extra large (XL), and extra extra large (XXL)

<u>Number of sizes the shirt comes in = 5</u>

The shirt comes in the following styles: short sleeves or long sleeves

<u>Number of styles the shirt comes in = 2</u>

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Total number of cotton chambray shirts that can be produced are:

No. of colors * No. of sizes * No. of styles

6 * 5 * 2

60 shirts

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7 0
3 years ago
Four people equally share 3/4 of a whole pizza. What fractional part of the whole pizza does each person receive?
Ugo [173]

Answer:

3/16

Step-by-step explanation:

6 0
3 years ago
Janice has 15 pets. Each of her pets is either a dog or a bird. If her pets have a total of 38 legs, how
balu736 [363]

<em>Hi!</em>

<em></em>

<em>These can be set up as systems of equations.</em>

<em> </em>

<em>Let b = the number of birds, and let d = the number of dogs.</em>

<em> </em>

<em>b + d = 21</em>

<em> </em>

<em>2b + 4d = 76 (this is because birds have 2 legs and dogs have 4 legs.)</em>

<em> </em>

<em>You can solve this using either elimination or substitution.</em>

<em></em>

<em>Consider marking brainliest.</em>

3 0
2 years ago
What is the intersection of AD and CD? Explain.
timofeeve [1]

Answer:

Point D

Step-by-step explanation:

AD and CD are a line

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