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3 years ago

6

Simplify.

2 answers:

strojnjashka [21]3 years ago

6 0

If you would like to simplify <span>a - {4b - [a - (5b - c) + 3c - (a - b - 9c)]}, you can do this using the following steps:

</span>a - {4b - [a - (5b - c) + 3c - (a - b - 9c)]} = a - {4b - [a - 5b + c + 3c - a + b + 9c]} = a - {4b - [- 4b + 13c]} = a - {4b + 4b - 13c} = <span>a - {8b - 13c} = a - 8b + 13c
</span>
The correct result would be b) <span>a - 8b + 13c.</span>

zysi [14]3 years ago

4 0

<span>To simplify a - {4b - [a - (5b - c) + 3c - (a - b - 9c)]} , we group the like terms and perform addition adn subtraction to these grouped terms. no multiplication nor division is applied. In thi case, the grouping results to
</span>a - 4b + a - 5b +c +<span> 3c - a + b + 9c = a -8 b + 13c. answer is B </span>

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Translate mathematical word sentence into written expression: a/2=9

Burka [1]

Answer:

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3 years ago

In Rivertown High School, about 30% of the students buy a raffle ticket. Given that a student buys a raffle ticket, there is a 1

lesya [120]

The probability that that a randomly selected student will buy a raffle ticket and win a prize = 0.03

Step-by-step explanation:

Step 1 :

Given,

The percentage of students buying the raffle ticket = 30%

The percentage that the student who bought the ticket wins the prize = 10%

We need to determined the probability that randomly selected student will buy a raffle ticket and win a prize.

Step 2 :

The probability that a student buys the raffle ticket = $\frac{30}{100} = \frac{3}{10}$

The probability that a student wins a prize = $\frac{10}{100}$ = $\frac{1}{10}$

The probability that a student who buys the ticket wins a price can be computed by taking the product of the above 2 probabilities.

= $\frac{3}{10}$ × $\frac{1}{10}$ = $\frac{3}{100}$ = 0.03

Step 3 :

Answer :

The probability that that a randomly selected student will buy a raffle ticket and win a prize = 0.03

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3 years ago

A tiger ate food that weighed 15% of its body weight. If it ate 75lb., how much does the tiger weigh?

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3 years ago

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BabaBlast [244]

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