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Dahasolnce [82]
2 years ago
10

The numbers of cars (c) in the parking lot increases when the parking fee (f) decrease. Write the correct equation for this scen

ario and solve for the number of cars when the fee is $6
Mathematics
1 answer:
vodka [1.7K]2 years ago
5 0
So when one goes up, the other goes down. This is an inverse equation.

An inverse equation looks like this: y = 1/x

In this case, when parking fee (f) decreases, cars (c) increase.
You know which side to put each variable on using the chart they gave you.
f         | c
20.00  15        (20.00 = x/15) x=300
30.00  10        (30.00 = x/10) x=300

So your equation in this case is f = 300/c
Knowing that, plug in the fee of 6.00

6 = 300/c   Multiply both sides by c.
6c = 300    Divide both sides by 6.
c = 50 cars

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Bethany has $3.10 in nickels and dimes. She has a total of 44 coins. What is the value of the nickels Bethany has?
lesantik [10]
0.05n + 0.1d = 3.10
n + d = 44

d = 44 - n

Substituting to the first equation:

0.05n + 0.1(44 - n) = 3.10
0.05n + 4.4 - 0.1n = 3.10
-0.05n = 3.10 - 4.4
n = 26

Obtaining the value of nickels:
26 * 0.05 = 1.3

Therefore, the value of nickels that Bethany has is $1.30
8 0
3 years ago
Read 2 more answers
Ms. Anderson deposits $7,000 into a savings account that pays a simple interest of 2% per year. Which of the following would be
ANEK [815]

Answer:

$7,428.46

Step-by-step explanation:

A = 7000(1 + .02)³

A = 7000(1.02)³

A = 7000(1.0612)

A = $7,428.46

7 0
3 years ago
Which of the following best describes the number shown below?
OLEGan [10]
Irrational

the number is endless in its digits (much like pi) and thus is irrational
5 0
3 years ago
The triangle has side lengths l,m, and n. Find the length of each side and the perimeter of the triangle. (PLEASE SHOW WORK)
erastovalidia [21]

The measure of the sides is 27, 23 and 16 and the perimeter is 56 respectively

<h3>The perimeter of a triangle</h3>

The triangle is a 2 dimensional shape that has 2 sides.

Given the following sides

l = m + n - 12

n = m - 7

m = l - 1/4n

l = m + 1/4n

Substitute

m + 1/4n = m + m - 7 - 12

m + 1/4(m-7) = 2m - 19

m + 1/4m - 7/4 = 2m - 19

-m + 1/4m = -19 + 7/4

-3/4m = -19(4)+7/4

-3/4m = -69/4

-3m = -69

m = 23

Hence the value of m from the given expression is 23

n = 23 - 7

n = 16

l = 23 + 16 -12

l = 39 - 12

l = 27

n = 23 - 7

n = 16

Hence the measure of the sides is 27, 23 and 16 respectively

Perimeter = 27+23+16

Perimeter = 56

Learn more on perimeter of triangle here: brainly.com/question/24382052

#SPJ1

3 0
1 year ago
give an example of a compoud event, then explain how we would find the probability of those compound events
Brilliant_brown [7]
Rolling a sum of seven with a pair of dice...any of the six numbers can be first so that probability is:

(6/6) or 1 :P

Now to roll a sum of seven only one unique number can follow the first so the probability of getting that unique number so that you have a sum of seven is:

(1/6)

This is a compound event because two thing must happen and you multiply their respective probabilities to get the probability of the compound even..

(6/6)(1/6)=6/36=1/6
6 0
2 years ago
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