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3 years ago

What is 66.66 as a fraction

Mathematics

2 answers:

Furkat [3]3 years ago

6 0

Answer:

The answer to this question is 3333/50

emmasim [6.3K]3 years ago

3 0

Answer:

66.66 as a fraction is ${66}\frac{33}{50}$ <u />

Step-by-step explanation:

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Isaiah put a kilogram on a balance pan. how many 100 gram weights does he need too balance the scale

Leno4ka [110]

1 kilogram = 1000 grams
100g • 10 = 1000g
Isaiah would need to put 10 100 gram weights on the scale in order for it to equal 1 kilogram.

4 0

3 years ago

"a standard deck of 52 cards is shuffled thoroughly, and n cards are turned up. What is the probability that a face card turns u

k0ka [10]

number of face cards in a deck of 52 cards = 12

total number of cards = 52

ways of choosing 'n' cards from 52 cards = ⁵²Cⁿ = 52!/(n!)(52-n)!

ways of choosing 'n' face cards = ¹²Cⁿ = 12!/(n!)(12-n)!

Probability = favorable outcomes/total outcomes

Probability of choosing n face cards = ¹²Cⁿ/⁵²Cⁿ

Probability of choosing n face cards = (12!/(n!)(12-n)!) / 52!/(n!)(52-n)!

= [ 12! * (52-n)! ]/[ (12-n)! * 52!)

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3 years ago

Tommy has "n" friends and he wants to give each friend 5 pencils. Write an expression to show how many pencils pencils Tommy wil

Tom [10]

Answer:

Step-by-step explanation:

Think about it:

If Tommy has 4 friends (n = 4), then he will have to give 5 pencils to each person. The total number of pencils is 5 * n or 5 * 4 = 20.

Similarly, if Tommy has 0 friends (I can relate), then he will have to give 5 pencils to each of his imaginary friends. The total number of pencils he has to give out to his real friends is 5 * n or 5 * 0 = 0.

4 0

3 years ago

Find the height of a tree of angle of elevation of its top changes from 25 degree to 50 degree as the observer advance 15m towar

Natali5045456 [20]

Answer:

11.5 m

Step-by-step explanation:

The problem can be solved using a trig relation that relates the side opposite the angle to the side adjacent to the angle. That relation is ...

Tan = Opposite/Adjacent

The lengths of the adjacent sides of the triangle can be found by rearranging this formula:

Adjacent = Opposite/Tan

The "opposite" side of the triangle is the height of the tree, which we can represent using h. The problem statement tells us of a relation between adjacent side lengths and angles:

h/tan(25°) -h/tan(50°) = 15 . . . . . moving 15 meters changes the angle

h(1/tan(25°) -1/tan(50°)) = 15

h = 15·tan(25°)·tan(50°)/(tan(50°) -tan(25°)) = 15(0.55572/0.72545)

h ≈ 11.4907 . . . . meters

The height of the tree is about 11.5 meters.