All categories

3 years ago

A total of

1 answer:

4 0

If we make $a$ an integer that represents the adults that bought tickets, and $s$ the number of students, then we have the equations $a+s=682$ , and $a=68+s$ .

Using the second equation, we find that $s=a-68$ , so we plug this value of $s$ into the first equation to get $a+(a-68)=682$ . We simplify to find $2a=750$ . We divide by $2$ to isolate the desired variable to get $a=\boxed{375\text{ adult tickets were sold}}$ .

You might be interested in

Dakota runs a half-marathon every 6 weeks, and madison runs a half-marathon every 15 weeks. if they start now, in how many weeks

LuckyWell [14K]

Dakota runs every 6 weeks......so he runs at 6 weeks, 12 weeks, 18 weeks, 24 weeks, 30 weeks

Madison runs every 15 weeks...so she runs at 15 weeks, 30 weeks, 45 weeks

so they will both be running a half-marathon at 30 weeks <==

6 0

2 years ago

Use the rule (x, y) (x - 2, y - 4) to graph the image of the rectangle. The. Describe the transformation

Furkat [3]

Move two units left and four units down

6 0

3 years ago

The Office of Student Services at UNC would like to estimate the proportion of UNC's 34,000 students who are foreign students. I

Pachacha [2.7K]

Answer:

Mean is 3.05

Standard deviation is 1.69.

Step-by-step explanation:

For each student, there are only two possible outcomes. Either they are foreign, or they are not. This means that we can solve this problem using concepts of the binomial probability distribution.

Binomial probability distribution

The probability of x sucesses on n repeated trials, with p probability.

In this problem, we have a sample of 50 students, so $n = 50$ . The proportion of all UNC students that are foreign students is 0.061, so $p = 0.061$ .

The mean is given by the following formula:

$E(X) = np = 50*0.061 = 3.05$

The standard deviation is given by the following formula:

$\sigma = \sqrt{n*p*(1-p)} = \sqrt{50*0.061*(1-0.061))} = 1.69$

6 0

2 years ago

Hello I made a pad let GC for people that stays up all night, and on this gc you can make friends or meet new people. Here's the

inessss [21]

Answer:

Step-by-step explanation:

For all the kids out there don't trust these I.D.1.0.T.S they are just trying to get your info to either do stuff 2 you or just laugh at you please don't fall for these du'mb tricks. Stay safe

7 0

3 years ago

Simplify<br> (4^7/5^2)^3

oksano4ka [1.4K]

Answer:

655.36^3, or 281474976.711

Step-by-step explanation:

4 to the power of seven equals 16384.

5 to the power of two equals 25.

3 0

3 years ago