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4 years ago

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A basket contained 75 brown eggs. 40% of them were used-up, and a third of them remaining were rotten and thrown out. What fract

ion of the initial number of brown eggs remained in the basket finally?

1 answer:

IceJOKER [234]4 years ago

6 0

Answer:

4/15

Step-by-step explanation:

40% is the same as .4.

.4 x 75 = 30

1/3 x 75 = 25

30 + 25 = 55

75 - 55 = 20

20 / 75

Simplify. Divide by 5.

4/15

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1) Which is NOT a solution to the equation:

Aleksandr [31]

The answer is 2,7. 3*8+1=25, 3*5+10=25, and 3*4+13=25 but 3*7+2=23. It is the only pair that wouldn’t equal 25.

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3 years ago

A bucket contains 4 red balls that are numbered 1, 2, 3, 4. It also contains 6 black balls that are numbered 5, 6, 7, 8, 9, 10.

Yakvenalex [24]

The probability is 1/9

<em>We want to find the </em><em>probability </em><em>that the first drawn ball is even, and the second is odd.</em>

The probability of randomly drawing an even ball will be equal to the quotient between the number of balls with even numbers and the total number of balls in the bucket.

We have a total of 10 balls (4 red ones and 6 black ones)

and 5 of these have even numbers (2, 4, 6, 8, 10)

Then the probability of drawing a ball with an even number first is:

p = 5/10 = 1/5

now we want to get a ball with an odd number.

notice that we already got a ball with an even number and we did not replace it, so now there are 9 balls left in the bucket, 5 odd ones, and 4 even ones.

The probability of getting an odd ball is computed in the same way thana above, as the quotient between the number of balls with odd numbers (5) and the total number of balls in the bucket (9)

q = 5/9

The joint probability (the probability that these two events happen together) is equal to the product of the individual probabilities, so we will get:

P = p*q = (5/9)*(1/5) = 1/9

The probability is 1/9

If you want to learn more about this topic, you can read:

brainly.com/question/24280250

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3 years ago

68 over 100 is what %

frez [133]

Answer: it should be 68%

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3 years ago

A roller coaster starts with the cars being pulled up a ramp. The mass of the cars is estimated by the function m(p) = 175p + 1,

KiRa [710]

Answer:

$E(p)=51,450p+346,920$

Step-by-step explanation:

The function

$m(p) = 175p + 1,180$

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And the function

$E(m) = 9.8m*h$

gives the potential energy of the car as a function of the car's mass.

Now if the height of the ramp is 30 meters, we have

$E(m) =9.8m*(30)$

$E(m) =294m$

And to find the potential energy as a function of the number of passengers, we just substitute $m(p)$ into $E(m)$ to get:

$E(m(p))=294(175p+1180)$

$\boxed{ E(p)=51,450p+346,920}$

which gives the potential energy as a function of the number of passengers.

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4 years ago

If f(x)=x²+2x then find f(2) and f(8)

kobusy [5.1K]

Answer:

f(2) = 8, f(8) = 80

Step-by-step explanation:

$f(x)=x(x+2)$

$f(2)=2(2+2)=2(4)=8\\f(8)=8(8+2)=8(10)=80$

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3 years ago