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
Kryger [21]
3 years ago
7

Please help me right away.

Mathematics
1 answer:
8090 [49]3 years ago
6 0

\dfrac{D(t)}{R(t)}=\dfrac{400-120t}{450-150t}=\dfrac{10(40-12t)}{10(45-15t)}=\dfrac{40-12t}{45-15t}\to\boxed{a.}

You might be interested in
A rectangular playground has a width of 540 feet and a length of 810 feet. Martina makes a scale model of the playground using a
abruzzese [7]

Answer:

72 and 108

Step-by-step explanation:

540/30= 18 *4 = 72

and

810/30= 27*4=108

4 0
3 years ago
What is 6920 divided by 4
7nadin3 [17]

ANSWER

ITS ANSWER IS 1730

6 0
3 years ago
Read 2 more answers
- 3 + 3x = 2x – 13 <br><br> I have to use more characters...
DENIUS [597]

- 3 + 3x = 2x – 13

Bring -3 to the right side of the equation by adding 3 to both sides

(- 3 + 3) + 3x = 2x – 13 + 3

0 + 3x = 2x - 10

3x = 2x - 10

Bring 2x to the other side by subtracting 2x to both sides

3x - 2x = 2x - 2x - 10

x = -10

Check:

-3 + 3(-10) = 2(-10) - 13

-3 + (-30) = -20 - 13

-33 = -33

Hope this helped!

~Just a girl in love with Shawn Mendes

6 0
3 years ago
What is the standard form of y=-3
Nady [450]

Answer:

Y=-3/2x+3

Step-by-step explanation:

No explanation.

5 0
3 years ago
Find the area of the figure.<br> PLS I NEED HELP FAST I BEG YOU!
Nina [5.8K]
585 is correct!

LxWxH is for area

Mark with crown!
6 0
3 years ago
Other questions:
  • What are the domain and range of the function
    14·2 answers
  • PLZ HELP!!!!!!!!!!!!!!
    6·1 answer
  • Ethan can type 2 pages in 1/3 of an hour how many pages can he type in 8 hours
    8·1 answer
  • Solve and explain please.
    15·1 answer
  • Evaluate -28.4 x -38.5?
    7·2 answers
  • Sebastian and his children went into a restaurant and he bought $45 worth'of hotdogs and tacos. Each hotdog costs $4.50 and each
    6·2 answers
  • Late night cryin wit santiana lol &lt;3
    13·2 answers
  • Increase 60kg by 40%<br><br><br> please help!
    11·2 answers
  • Find the slope from the two points given: (3,9) and (1,8)
    8·1 answer
  • Find the value of a $3,000 certificate in 2 years, if the interest rate is 10% compounded annually.
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!