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4 years ago

A bage contains 5 blue marbles, 3 red marbles, and 2 yellow marbles. You select a marble at radom. What is p(yellow)

Mathematics

1 answer:

vodomira [7]4 years ago

7 0

Total marbles = 5 + 3 + 2 = 10
Total yellow marbles = 2
P(yellow) = 2/10 = 1/5

Answer: 1/5

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Evalue f(x)=(-2)^2-3(-2)+5/(-2)^2+1

Nina [5.8K]

F(x)=4+6+5/4+1
F(x)=4+6+5/5
F(x)=10+1=11

Answer =11

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3 years ago

Given that 3(x-c)=2x+5 where c is an integer, shoe that x cannot be a multiple of 6

olga nikolaevna [1]

Answer:

The explanation in the procedure

Step-by-step explanation:

we have

$3(x-c)=2x+5$

solve for c

$3x-3c=2x+5$

$3c=3x-2x-5$

$3c=x-5$

$c=(x-5)/3$

For $x=6$ -----> Find the value of c

$c=(6-5)/3=1/3$ ------> is not an integer

therefore

x cannot be a multiple of 6

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4 years ago

(7) It takes 1 & 1/4 minutes to fill a 3-gallon bucket of water with a hose. At this rate, how long does it take to fill a 5

Svetlanka [38]

It takes 20.833 minutes to fill a 50 gallon tub

<em><u>Solution:</u></em>

Given that,

It takes 1 & 1/4 minutes to fill a 3-gallon bucket of water with a hose

$1\frac{1}{4}\ minutes = \frac{4 \times 1 + 1}{4} = \frac{5}{4} = 1.25\ minutes$

Let "x" be the time taken to fill a 50 gallon tub

Therefore, from given,

1.25 minutes = 3 gallon

x minutes = 50 gallon

This forms a proportion and we can solve the sum by cross multiplying

$1.25 \times 50 = x \times 3\\\\3x = 62.5\\\\x = \frac{62.5}{3}\\\\x = 20.833$

Thus it takes 20.833 minutes to fill a 50 gallon tub

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