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
Anarel [89]
3 years ago
12

Just question 1, please.

Mathematics
1 answer:
ANTONII [103]3 years ago
6 0

Step-by-step explanation:

We can start by writing an equation to describe the data set. For 2D data, one equation form we can use is y=m*x + b, where x is the input and y is the output. Since yuan are put in and dollars are put out, x represents yuan and y represents dollars in this instance.

To find the equation, we can start by plugging in two points, such as (50, 1.25) and (100, 7.5). The slope, or m, is equal to the change in y/change in x, or

(7.5-1.25)/(100-50) = 6.25/50

= 0.125. This means that for each yuan put in, 0.125 dollars come out, according to the formula.

Next, we must find b. Plugging 0.125 in for m and taking a set of points, such as (50, 1.25), we get

1.25 = 50(0.125) + b

1.25 = 6.25 + b

subtract both sides by 6.25 to isolate the b

-5 = b

Therefore, we can write our equation as

y = 0.125 * x - 5

In this equation, there is an exchange rate of 0.125, meaning that for each yuan put in, 0.125 dollars are coming out. The -5 symbolizes that for each transaction, 5 yuan are being lost, which is the fee for exchanging money.

To check if the equation works, we can try it for options such as (200, 20) and (250, 26.25). This does work, so we can move forward with our equation.

For (c), our equation is y = 0.125 * x - 5, with the y representing dollars, x representing yuan, 0.125 representing the exchange rate, and -5 representing the fee for exchaning mone

For (b), because 5 yuan are subtracted from the exchange rate for each transaction, it is fair to assume that there is a fee for exchanging money. There is a fee of 5 yuan per transaction. In dollars, using the exchange rate of 0.125 dollars per yuan, this is equal to 0.625 dollars

For  (a), the exchange rate is 0.125 dollars per yuan. We know this because for each yuan put in, 0.125 dollars are coming out after taking into account the fee

You might be interested in
Which equation matches the statement
Ulleksa [173]
-4x+2=9 would be the answer for this equation
3 0
3 years ago
Read 2 more answers
A bus trip takes 1.5 hours. By plane, the same trip takes 30 minutes. How
DENIUS [597]

Answer:

2 times faster

Step-by-step explanation:

because the plane takes one hour less than the bus and 60 min equal a hour and 30 plus 30 equal 60 which is a hour so then it would be 2 times as faster because it is 30 twice to equal the 60

4 0
3 years ago
What is one subtraction expression that equals 180
storchak [24]

Answer:

200-20=180

Step-by-step explanation:

4 0
3 years ago
What is 2.05 +4.77 ?
Effectus [21]

The answer is 6.82

2 + 4 = 6

.05 + .77 = .82

6 + .82  = 6.82

4 0
2 years ago
Read 2 more answers
A car salesman's total earnings, e, is a base salary plus a commission. The salesman has a base salary of $40,000 and receives a
stellarik [79]
E = $40,000 + $200c
e = 40000 + 200c

Hope this helps. - M
6 0
3 years ago
Other questions:
  • HELP I WILL MARK YOU AS A BRAINLIEST!!!
    12·1 answer
  • Jake sells planter boxes at the local flea market. The table shows the amount of money Jake has paid for different numbers of pl
    6·2 answers
  • 4. Find the percent of decrease from 340 to 150. Round to the nearest tenth of a
    12·2 answers
  • (x+3)^2 when tking the square root of both sides of this equation how many solutions will it have
    9·1 answer
  • There are only 5 blue cards, 2 green cards and 4 red cards in a pack.
    7·1 answer
  • What is the reciprocal of 10/13
    6·2 answers
  • Pls help Which of the following exponential equations is equivalent to the logarithmic equation below ? In x = 7
    13·1 answer
  • Bill is making accessories for the soccer team. He uses 611.66 inches of fabric on headbands for 31 players and 3 coaches. He al
    9·1 answer
  • HELPPPPP MEEEEEEEEEEEeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee
    14·1 answer
  • There are 200 hundred cookies in the jar, if 15% are chocolate chip, how many cookies are chocolate chip?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!