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
aliina [53]
3 years ago
14

A vet's office offers boarding for cats and dogs. boarding a cat cost$20 per night and a dog cost $25 per night if the vet's off

ice boards 18 total animals in one night and earns a total of $400 which equations can be used to find the number of cats, x and dogs, y that were boarded?
a. x-y=18
20x-25y=40

b. x+y=18
20x+25y=400

c. x-y=18
25x-20y=400

d. x+y=18
25x+20y=400​
Mathematics
1 answer:
MAVERICK [17]3 years ago
7 0

Answer:

b. x+y=18

20x+25y=400

Step-by-step explanation:

You might be interested in
Find the period of the graph shown below<br> A. 4π<br> B. π<br> C. 2π<br> D. 2/3π
4vir4ik [10]
A I believe is the answer
8 0
3 years ago
Read 2 more answers
How could you use subtraction to find the area of a figure
wel

Answer:

brainly.com/question/7699717

Step-by-step explanation:

8 0
2 years ago
What is the perimeter of the trapezoid with vertices Q(8, 8), R(14, 16), S(20, 16), and T(22, 8)? Round to the nearest hundredth
EleoNora [17]
Check the picture below.

so... you can pretty much see how long RS and QT are, you can just count the units off the grid.

now, let's find QR's length

\bf ~~~~~~~~~~~~\textit{distance between 2 points}\\\\&#10;\begin{array}{ccccccccc}&#10;&&x_1&&y_1&&x_2&&y_2\\&#10;%  (a,b)&#10;&Q&(~ 8 &,& 8~) &#10;%  (c,d)&#10;&R&(~ 14 &,& 16~)&#10;\end{array}~~ &#10;%  distance value&#10;d = \sqrt{( x_2- x_1)^2 + ( y_2- y_1)^2}&#10;\\\\\\&#10;QR=\sqrt{(14-8)^2+(16-8)^2}\implies QR=\sqrt{6^2+8^2}&#10;\\\\\\&#10;QR=\sqrt{36+64}\implies QR=\sqrt{100}\implies QR=10

and let's also find the length for ST

\bf ~~~~~~~~~~~~\textit{distance between 2 points}\\\\&#10;\begin{array}{ccccccccc}&#10;&&x_1&&y_1&&x_2&&y_2\\&#10;%  (a,b)&#10;&S&(~ 20 &,& 16~) &#10;%  (c,d)&#10;&T&(~ 22 &,& 8~)&#10;\end{array}~ &#10;d = \sqrt{( x_2- x_1)^2 + ( y_2- y_1)^2}&#10;\\\\\\&#10;ST=\sqrt{(22-20)^2+(8-16)^2}\implies ST=\sqrt{2^2+(-8)^2}&#10;\\\\\\&#10;ST=\sqrt{4+64}\implies ST=\sqrt{68}\implies ST=\sqrt{4\cdot 17}&#10;\\\\\\&#10;ST=\sqrt{2^2\cdot 17}\implies ST=2\sqrt{17}

so, add the lengths of all sides, and that's the perimeter of the trapezoid.

8 0
3 years ago
Read 2 more answers
800,000,000,000 + 20,000,000,000 + 3,000,000,000 + 50,000,000 + 4,000,000 + 600,000 + 50,000 + 8,000 + 700 + 80 + 6
WITCHER [35]
823054658786 is the answer to your question
3 0
3 years ago
Answer please. Simplify the expression<br><br> 8y - 11y + 6
sattari [20]
8y - 11y + 6

Combine like terms

-3y + 6 is the simplified answer. 
5 0
2 years ago
Other questions:
  • A worker can assemble 3 shelf units each hour. During the fifth hour of the shift, there were 115 shelf units in the warehouse.
    6·1 answer
  • The question is: type your equation for the following pattern
    11·1 answer
  • Find the equation of the line through point (2,−4) and parallel to −6x+2y=4. Use a forward slash (i.e. "/") for fractions (e.g.
    15·1 answer
  • A used bookstore will trade 2 of its books for 3 of yours if Val brings in 18 books to trade how many books can she get from the
    15·1 answer
  • There are thirty-five red, yellow, orange, and white marbles in a bag. If half the number of red marbles equals two less than th
    8·2 answers
  • You are at a family reunion and the cooler contains ten bottles of soda; four Sprite, three Dr. Pepper, and three Cherry Coke. T
    9·1 answer
  • I need help with this
    11·2 answers
  • 45% of c is 90. <br> Find the value of c.
    15·1 answer
  • A = 6 - 35 B = 3x + 53<br> Solve for x then find the measure of A.
    10·1 answer
  • Which two numbers have a 3 that is 10 times the value of the 3 in 1,249.35?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!