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
ohaa [14]
3 years ago
8

Each month, Kaisorn deposits $50.00 onto her public transportation card. It costs her $2.50 per trip to ride the subway. Thom de

posits $40.00 on his public transportation card. It costs him $2.00 per trip to ride the subway.
If x represents the number of trips and y represents the amount remaining in each account, which system of equations represents their transportation costs?

A 50 − 2.5x = y
  40 − 2x = y
B 50 + 2.5x = y
  40 + 2x = y
C 50 − 2.5y = x
  40 − 2y = x
D50 + 2.5y = x
  40 + 2y = x
Mathematics
2 answers:
Blizzard [7]3 years ago
7 0

Answer:

A. 50 − 2.5x = y

 40 − 2x = y

Step-by-step explanation:

We know that x represents the number of trips and y represents the amount remaining in each account, then, let's think in an example; after the first trip x = 1, therefore, Kaisorn's account must decrease from $50 to $50 - $2.5 = $47.5 = y, and Thom's account must decrease from $40 to $40 - $2 = $38 = y. Replacing x = 1 in each case gives:

A

50 − 2.5(1) = y

47.5 = y

   40 − 2(1) = y

   38 = y

B

50 + 2.5(1) = y

52.5 = y

 40 + 2(1) = y

 42 = y

C

50 − 2.5y = (1)

y = (1 - 50)/(-2.5)

y = 19.6

 40 − 2y = (1)

  y = (1 - 40)/(-2)

  y = 19.5

D

50 + 2.5y = (1)

y = (1 -50)/2.5

y = -19.6

 40 + 2y = (1)

 y = (1 - 40)/(2)

 y = -19.5

As it can be seen, option A is the correct one.

lara31 [8.8K]3 years ago
4 0
The answer is
"A"
50 - 2.5x = y
40 - 2x = y
You might be interested in
Zach got 3 questions wrong on a 40 question test. What percent of the test did he get correct
adelina 88 [10]
0.03 x 40... or its either the other way around like 0.02 x 40 lol
6 0
3 years ago
Read 2 more answers
In the figure, three line segments cross at a common point. Angle A is 45°, and angle E is 85°. What is the measurement of angle
katen-ka-za [31]

Answer: Measure angle H = 42°


Step-by-step explanation:

"In a triangle, the measure of the exterior angle is equal to the sum of the measures of the two non-adjacent angles to the exterior angle"

In given we have,

angle E is an exterior angle to triangle DFH

The two non-adjacent angles to angle E are angles D and H

Based on the above rule,

measure angle E = measure angle D + measure angle H

We are given this:

angle E = 87°

angle D = 45°

Substitute with the givens in the above rule and solve for the measure of angle H as follows:

angle E = angle D + angle H

87° = 45° + measure angle H

measure angle H = 87° - 45°

measure angle H = 42°

Hope this helped!

5 0
3 years ago
How do I work this math problem?<br> (9 x 10 to the sixth power) (8 x 10 negative 4 power?
Kamila [148]
90^6=531441000000

80^-4= 1/80^4= 1/4960000
For this, use negative power rule x^-a= 1/x^a
7 0
3 years ago
5 litres of paint cost 210 work out the cost of 50 L of paint​
krek1111 [17]

Answer:

2100

Step-by-step explanation:

5/210=50/x

x= 50*210 / 5

x= 2100

4 0
3 years ago
.solve for c <br> c−1.5+6.8=0.6<br><br> I NEED HELP
kiruha [24]

Answer: c= -4.7

Step-by-step explanation:

Look at link hope it helps

4 0
3 years ago
Other questions:
  • The angles opposite the congruent sides of an isosceles triangle are congruent find the value of x in the triangle
    6·2 answers
  • WILL GIVE BRAINLIST SOON AS I CAN is the second number 3?​
    9·2 answers
  • I have X, I just need Y.
    8·1 answer
  • Please help I I’m stuck on this question
    12·1 answer
  • Alyson opened a savings account with $100. She saves $50 per month. Which of the following equations 1.) 100+50x=y 2.) 50+100x=y
    12·1 answer
  • Hello I am once again asking for help ASAP
    12·1 answer
  • Carlos opened an internet café in November. The table shows his profit or loss during his first four months in business. Use the
    9·2 answers
  • Annabelle picked 200 apples at a local orchard. If 40% of the apple were green apples, how many green apples for annabelle pick?
    14·2 answers
  • Mrs. Dixon had 1/2 of a cherry pie leftover. She split the leftover pie evenly between her children, and each child got 1/6 of a
    11·2 answers
  • I need help ASAP Fernando bikes for 3.5 hours and covers a distance of 25.2 miles. Rebecca bikes for 4.5 hours and covers a dist
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!