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3 years ago

A bag contains 28 marbles: 9 black, 14 red, and 5 blue. A marble is drawn from the bag at random.

Mathematics

1 answer:

prohojiy [21]3 years ago

6 0

Answer:

steps

1) 14/28 to convert to a percent you have to first divide the numerator from the demoninator and then you multiply by 100 and you get get %50 (you could had known bc 14 is half of 28)

2) 5/28 do the same thing as the first step and get %17.85

-Feel free to ask for more help :)

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If r=0.5 and a6=0.03125 what is the value of a1?

andre [41]

I guess this is a geometric series:

a6 = a1 * r^5 so

a1 = 0.03125 / 0.5^5

= 1 answer

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3 years ago

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balandron [24]

Answer:

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Step-by-step explanation:

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3 years ago

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tekilochka [14]

Answer:

cost of large delivery truck = $60,000

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Step-by-step explanation:

let,

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3 years ago

Steve paid 10% tax on a purchase of $40. Select the dollar amount of the tax and the total dollar amount Steve paid on the numbe

lidiya [134]

Steve payed $4 in tax because 10% of 40 is 4. Steve payed $44 in total because 4+40=44.

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3 years ago

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A triangle with 7,?, and form a right triangle.

Vlad1618 [11]

9514 1404 393

Answer:

C 24

D 25

Step-by-step explanation:

Consider the choices offered:

5 and 7 will not form a triangle* with any of the other lengths

7 and 12 will not form a triangle with any of the other (longer) lengths

7 and 24 will form a triangle with the other possibilities, 25 and 29. (needs further consideration)

7 and 25 will not form a right triangle with 29, because a right triangle cannot have 3 odd-length sides.

<em>Further consideration</em>

7^2 +24^2 = 49 +576 = 625 = 25^2 . . . . checking Pythagorean theorem

The side measures 7, 24, 25 will form a right triangle.

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* A triangle can be formed from three segments only if the sum of the shortest two exceeds the length of the longest one.

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3 years ago