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Gre4nikov [31]
2 years ago
15

John did an experiment pulling marbles out of a bag, without knowing the contents of the bag. After performing

Mathematics
1 answer:
Lorico [155]2 years ago
4 0

Answer:

300

Step-by-step explanation:

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Cara has 25$ to buy dry pet food and treats for the animal shelter. A pound of dog food cost $2 and treats are $1 apiece. If she
alina1380 [7]
Let x be the number of treats bought
Let y be the pounds of food bought

25= 2y+x

Given that she has buys 9 pounds of dog food:

25= 2(9)+x
25=18 +x
25-18 =x
7=x

With the money she has left over, she can buy 7 treats.

Hope I helped :)
5 0
3 years ago
Ben has 1/2 of a loaf of bread if he and his 3 friends share the 1/2 loaf equally how much of the whole loaf does each person ge
Dvinal [7]
Given:
1/2 loaf of bread
3 friends

1/2 ÷ 3 ⇒ 1/2 * 1/3 = 1*1 / 2*3 = 1/6

In dividing fractions, get the reciprocal of the divisor and multiply it to the dividend
6 0
3 years ago
Read 2 more answers
I have no idea what this means
zhuklara [117]

Answer: idk the answer but i can tell u that u are trying to find the value of the symbols and the numbers :)

Step-by-step explanation:

5 0
3 years ago
A survey found that 8 out of 10 parents approved of the new principal’s performance. If 4 parents name are chosen with replaceme
Natasha2012 [34]

Answer:

The probability is 0.044

Step-by-step explanation:

Step-by-step explanation:

Let p be the probability that the new principal’s performance is approved.

This is obtainable from the survey and it is 8/10 = 0.8

Let q be the probability that the new principal’s performance is disproved.

That will be;

1 - q = 1- 0.8 = 0.2

To calculate the probability that 14 parents names are chosen at random and they all

approve of the principal’s performance, we use the Bernoulli approximation of the binomial theorem.

That will be;

14C14 * p^14 * q^0

= 1 * 0.8^14 * 0.2^0

= 0.043980465111 which is approximately 0.044

8 0
3 years ago
The classroom had 35 glue sticks. If the ratio of glue sticks to glue bottles was 5 : 2, how many glue bottles did the classroom
Marat540 [252]

Answer:

14 glue bottles.

Step-by-step explanation:

Let's use a ratio:

sticks : bottles

  5     :     2

  35   :    14

There are 14 glue bottles in the classroom.

7 0
3 years ago
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