1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Sphinxa [80]
3 years ago
6

A ski rental store rents a pair of skis for $44 a day and a snowboard for $58 a day. Yesterday, the store made $2,232 on ski and

snowboard rentals. They rented 9 more pairs of skis than snowboards. Write a system of equations that could be used to represent this situation and to find the number of ski rentals and snowboard rentals.
Mathematics
1 answer:
Katen [24]3 years ago
3 0

First, let the number of skis rented by x and the number of snowboards rented by y. We can then assemble the first equation from the amount of money made from the rentals.


44x + 58y = 2232


The second equation can come from the fact that 9 more skis were rented than snowboards.


y = x - 9


Therefore our system is:


44x + 58y = 2232

y = x - 9

You might be interested in
There are 18 pieces of chalk. The ratio if chalk that is yellow to chalk that is not yellow is 1:2. How many more pieces of whit
katen-ka-za [31]
The amount of chalk are equal
5 0
3 years ago
Researchers at a pharmaceutical company have found that the effective time duration of a safe dosage of pain relief drug is norm
FrozenT [24]

Answer:

a) P(1

b) P(X

Step-by-step explanation:

1) Previous concepts

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

The Z-score is "a numerical measurement used in statistics of a value's relationship to the mean (average) of a group of values, measured in terms of standard deviations from the mean".  

2) Part a

Let X the random variable that represent the duration of a safe dosage of pain relief drug, and for this case we know the distribution for X is given by:

X \sim N(1.5,0.8)  

Where \mu=1.5 and \sigma=0.8

We are interested on this probability

P(1

And the best way to solve this problem is using the normal standard distribution and the z score given by:

z=\frac{x-\mu}{\sigma}

If we apply this formula to our probability we got this:

P(1

And we can find this probability on this way:

P(-0.625

And in order to find these probabilities we can find tables for the normal standard distribution, excel or a calculator.  

P(-0.625

3) Part b

We are interested on this probability

P(X

And the best way to solve this problem is using the normal standard distribution and the z score given by:

z=\frac{x-\mu}{\sigma}

If we apply this formula to our probability we got this:

P(X

And we can find this probability on this way:

P(z

6 0
3 years ago
do males or females feel more tense or stressed out at work? A survey of employed adults conducted online by Harris Interactive
Katen [24]

Answer:

yes

Step-by-step explanation:

any number is a difference

7 0
3 years ago
Write 5.11x10^3 in standard form
Karo-lina-s [1.5K]

Answer:

5.11 \times  {10}^{3}  \\  = 5.11 \times 1000 \\  = 5110

3 0
2 years ago
Read 2 more answers
Use the distributive property to expand this expression: 4(2z + 3y) =
Rasek [7]

Answer:

8z+12y

Step-by-step explanation:

hope this helps

5 0
3 years ago
Other questions:
  • -4 1/2+2 what is the answer Thanks
    14·1 answer
  • Allyson has 4.5 pieces of rope to use for a tire swing. If each full piece is 2 2/3 feet long, how much rope does Allyson have i
    14·1 answer
  • Simone placed 15 beads on a string as shown. The beads are arranged in a color pattern with the colors blue, red, and green. The
    15·1 answer
  • Does a triangle with the sides of 25 cm, 24 cm, and 7 cm form a right triangle?​
    15·1 answer
  • Use graph to answer question
    15·1 answer
  • I'm not sure what to do for this question.
    13·2 answers
  • Find the slope of the given line, if it is defined.
    10·1 answer
  • Im a boy im in 7th grade 13 years old and single i need some help
    9·1 answer
  • Please help 7th grade math
    15·2 answers
  • Please take a look at the picture for the question
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!