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
shtirl [24]
3 years ago
15

Write an expression to show how you could calculate the total amount David paid.

Mathematics
2 answers:
Viktor [21]3 years ago
8 0

Answer: Total = $100

Step-by-step explanation:

y = total amount

x = amount per hour

b = initial amount cost

m = amount of hours

y=mx +b

y = (5)(15) + (25)

y = 100

Leya [2.2K]3 years ago
7 0
Answer:total=100 hope this helps.:)
You might be interested in
Your friend says that it is impossible for the circumcenter of a triangle to
Nat2105 [25]

Answer:

no because he is STUPlD

Step-by-step explanation:

8 0
2 years ago
Explain how a bar model can be used to show a subtraction problem
snow_lady [41]
The amount of money you have each month will be subtracted by the amount that you spend then you would put amount you spent on a bar graph alond with the amount you had
6 0
3 years ago
A plane flying horizontally at an altitude of 3 miles and a speed of 500 mi/h passes directly over a radar station. Find the rat
konstantin123 [22]

Answer:

The rate at which the distance from the plane to the station is increasing is 331 miles per hour.

Step-by-step explanation:

We can find the rate at which the distance from the plane to the station is increasing by imaging the formation of a right triangle with the following dimensions:

a: is one side of the triangle = altitude of the plane = 3 miles

b: is the other side of the triangle = the distance traveled by the plane when it is 4 miles away from the station and an altitude of 3 miles

h: is the hypotenuse of the triangle = distance between the plane and the station = 4 miles                    

First, we need to find b:    

a^{2} + b^{2} = h^{2}   (1)    

b = \sqrt{h^{2} - a^{2}} = \sqrt{(4 mi)^{2} - (3 mi)^{2}} = \sqrt{7} miles

Now, to find the rate we need to find the derivative of equation (1) with respect to time:

\frac{d}{dt}(a^{2}) + \frac{d}{dt}(b^{2}) = \frac{d}{dt}(h^{2})

2a\frac{da}{dt} + 2b\frac{db}{dt} = 2h\frac{dh}{dt}

Since "da/dt" is constant (the altitude of the plane does not change with time), we have:  

0 + 2b\frac{db}{dt} = 2h\frac{dh}{dt}

And knowing that the plane is moving at a speed of 500 mi/h (db/dt):

\sqrt{7} mi*500 mi/h = 4 mi*\frac{dh}{dt}

\frac{dh}{dt} = \frac{\sqrt{7} mi*500 mi/h}{4 mi} = 331 mi/h  

Therefore, the rate at which the distance from the plane to the station is increasing is 331 miles per hour.

I hope it helps you!

4 0
2 years ago
Your turn
Ann [662]

Answer:

450/3

Step-by-step explanation:

4 0
2 years ago
Annie estimates that the height of a bookcase is 78.25 in. The actual height is 75.50 in. To the nearest tenth of a percent, wha
Mila [183]
The error is about 3.5%
5 0
2 years ago
Other questions:
  • What is 32/36 equivalent to ??
    7·1 answer
  • Which three lengths could be the lengths of the sides of a triangle?
    10·1 answer
  • 3 people ar splitting a 10 ounce bag of pop corn if they share this popcorn equally how many ounces of popcorn will each person
    13·1 answer
  • Can someone help me please
    5·1 answer
  • There are TWO questions!! Please help me!! Thank you loves!! <3
    5·1 answer
  • At wendys, 3 baconators and 2 frosty cost $21.50. If 5 baconators and 1 frosty cost 30$, find the price of 1 baconnator and 1 fr
    10·2 answers
  • Apply the distributive property to factor out the greatest common factor.<br>55+35​
    11·1 answer
  • I need the middle one
    15·2 answers
  • If Q is the midpoint of segment PR, PQ = 17 cm, then what is the total length of PR?
    5·1 answer
  • Aaron makes $45 dollars per day delivering newspapers. He earns 0.75 for each newspaper he delivers. How many newspaper, n, must
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!