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
babymother [125]
2 years ago
7

four red boxes and two black boxes cost $40. Five red boxes cost $20. All red boxes cost the same. All black boxes cost the same

. What is the ratio of the cost of a red box to the cost of a black box.
Mathematics
1 answer:
exis [7]2 years ago
8 0
The ratio of red to black is 1:3
You might be interested in
PLEASE HELP MEEEE!!!!!!
trapecia [35]

Answer:

the answer is 45

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
A line segment has endpoints P(-1,5)and Q(5,2) find the coordinate of that trisect the segment​
musickatia [10]

Answer:

(1, 6).  The second is (-1 + 2 + 2, 1 + 1 + 1), or (3, 3)

Step-by-step explanation:

Moving from P to Q, we see that x increases by 6  and y increases by 3.

"Trisect" means "divide into three equal subintervals."

We find (1/3) of 6 (which comes out to 2) and (1/3) of 3 (which comes out to 1).  

Thus, the first junction (between 1st and 2nd trisection) is (-1 + 2, 5 + 1), or (1, 6).  The second is (-1 + 2 + 2, 1 + 1 + 1), or (3, 3)

5 0
2 years ago
15. The dollar amount y that remains to be repaid on a loan x months after the loan is issued is represented by y=-1000x + 8000.
irina [24]

Answer:

1) $8000

2) $1000

3) 8 months, since y represents our remaining amount to be paid, we set it equal to 0, to see when $0 need to be paid. Solving for x (months), we can it to be 8.

Step-by-step explanation:

We have the equation y = -1000x + 8000 which follows the linear equation:

y = mx + b, where m is our slope and b is our y-intercept

1) The initial balance can be found with our constant "b" which in this case is 8000. You can also plot the function of y and you will find that 8000 is the intercept when x = 0, aka the start

2) We can calculate the rate of change for when the loan is repaid by looking at the slope "m", in this case it is 1000. It subtracts 1000 each month, meaning $1000 is being payed and taken out of the bank account

3) To find how many months it will take for the loan to be repaid, let's solve for x when y = 0.

0  = -1000x + 8000

-8000 = -1000x

8 = x

It will take 8 months. Why? Since y represents our remaining amount to be paid, we set it = 0, to see when $0 need to be paid. Solving for x (months), we can it to be 8.

5 0
2 years ago
Is 8/15 0.53 with the 3 repeating or no?
Mekhanik [1.2K]

Answer:

Yes.

Step-by-step explanation:

I don't really know how to explain this other than use a calculator.

Hope that this helps!

8 0
2 years ago
Find the geometric mean between 9 and 11
klio [65]

Step-by-step explanation:

Geometric mean is the square root of the product.

√(9 × 11) = √99 ≈ 9.950

3 0
3 years ago
Other questions:
  • Half is a third of it.what is it?
    5·1 answer
  • Which is the graph of f(x) = x2 – 2x + 3?
    13·1 answer
  • MATH<br><br>ANSWER and I will give you brainiliest ​<br>​
    6·1 answer
  • 2.1 repeating as a mixed number?
    7·1 answer
  • Sarah has the following sets of numbers.
    15·2 answers
  • اسحب الإجابة الصحيحة إلى مكانها المناسب.
    8·2 answers
  • The Science Club went on a two-day field trip. The first day the members paid $30 for transportation plus $10 per ticket to the
    11·2 answers
  • Un cuadro tiene 12 cm en sus lados ¿cuanto mide su area y su perimetro
    15·1 answer
  • Hello there I need help.
    13·1 answer
  • Find the unit vector in the direction of (-2, -1).
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!