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3 years ago

8

There are 10 students participating in a spelling bee. In how many ways can the students who go first, second, and third in the

bee be chosen?

1 answer:

Dovator [93]3 years ago

5 0

Answer:

90

Solution:

The 1st choice is 1 of 10.

The 2nd is one of 9.

Therefore, 10 times 9= 90

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Some people advise that in very cold weather, you should keep the gas tank in your car more than half full. Irene's car had 6.

artcher [175]

Answer:

Irene spent $33.82 on gas to fill her tank.

I don’t know if im correct

7 0

3 years ago

Alan has $400 in his checking account. He withdraws $50 each week. The amount remaining in his account, f(x), after x weeks is

MrRa [10]

Answer:

{0, 50, 100, 150, ..., 350, 400}

Step-by-step explanation:

The range of Alan's balance will be multiples of 50 that are between (and including) 0 and 400.

{0, 50, 100, 150, ..., 350, 400}

_____

The expression for f(x) is ...

f(x) = initial balance - (rate of withdrawal) × (time period)

f(x) = 400 -50x

This is a continuous linear function defined for all x, and capable of producing f(x) values between -∞ and +∞. The range of this function is "all real numbers."

However, <em>as applied to this problem</em>, the domain of x is the set of integers from 0 to 8. The corresponding range is multiples of 50 from 0 to 8, that is, values 0, 50, ..., 350, 400.

8 0

3 years ago

The equation, y = 1250x + 22,850, gives the salary of a person as "y" after the stated number of years (x). Model the data with

Sidana [21]

Answer:

(a) $y = 6250x +17850$ --- The function

(b) $y = 49100$ --- The salary in 5 years

Step-by-step explanation:

Given

$y = 1250x + 22850$

Solving (a): Model the function around (1,24100) and (3,36600)

First, we calculate the slope

$m = \frac{y_2 - y_1}{x_2 - x_1}$

$m = \frac{36600 - 24100}{3 - 1}$

$m = \frac{12500}{2}$

$m = 6250$

The function is then calculated as:

$y = m(x - x_1) + y_1$

$y = 6250(x - 1) + 24100$

$y = 6250x - 6250 + 24100$

$y = 6250x +17850$

Solving (b): Salary in 5 years

Here:

$x = 5$

So:

$y = 6250x +17850$

$y = 6250*5 +17850$

$y = 49100$

8 0

3 years ago

Pls help extra points and mark brainlist

ludmilkaskok [199]

Answer:

B.

Hope that helps!

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

Boxes have edges of 4 inches, 12 boxes are put in and completely fills the cartoon, what is the volume of the carton?

Natasha2012 [34]

So what I think is that you multiply 4 by 4 or add 4 four times.Then, you would multiply 16 with 12 because there are 12 boxes and each box is 16. After doing that, you will get 192. Hope it helps :)

5 0

3 years ago