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
velikii [3]
3 years ago
10

wally has 84$. he used two seventh of his money to buy a new pair of running shoes. how much did wally spend on his new shoes?​

Mathematics
2 answers:
Novosadov [1.4K]3 years ago
7 0

Answer:

$24

Step-by-step explanation:

What you do is you just times 84 x 2/7 to get your answer.

84 x 2/7=$24 is your answer.

Darya [45]3 years ago
4 0

Answer:

$24

Step-by-step explanation:

To find out how much he spent on the shoes, take the amount of money he has and multiply by the fraction he spent on shoes

84 * 2/7

168/7

24

He spent 24 dollars on new shoes

You might be interested in
What is the value of the expression shown?
faust18 [17]

Answer:

31

Step-by-step explanation:

3 0
3 years ago
Litter such as leaves falls to the forest floor, where the action of insects and bacteria initiates the decay process. Let A be
Travka [436]

Answer:

D = L/k

Step-by-step explanation:

Since A represents the amount of litter present in grams per square meter as a function of time in years, the net rate of litter present is

dA/dt = in flow - out flow

Since litter falls at a constant rate of L  grams per square meter per year, in flow = L

Since litter decays at a constant proportional rate of k per year, the total amount of litter decay per square meter per year is A × k = Ak = out flow

So,

dA/dt = in flow - out flow

dA/dt = L - Ak

Separating the variables, we have

dA/(L - Ak) = dt

Integrating, we have

∫-kdA/-k(L - Ak) = ∫dt

1/k∫-kdA/(L - Ak) = ∫dt

1/k㏑(L - Ak) = t + C

㏑(L - Ak) = kt + kC

㏑(L - Ak) = kt + C'      (C' = kC)

taking exponents of both sides, we have

L - Ak = e^{kt + C'} \\L - Ak = e^{kt}e^{C'}\\L - Ak = C"e^{kt}      (C" = e^{C'} )\\Ak = L - C"e^{kt}\\A = \frac{L}{k}  - \frac{C"}{k} e^{kt}

When t = 0, A(0) = 0 (since the forest floor is initially clear)

A = \frac{L}{k}  - \frac{C"}{k} e^{kt}\\0 = \frac{L}{k}  - \frac{C"}{k} e^{k0}\\0 = \frac{L}{k}  - \frac{C"}{k} e^{0}\\\frac{L}{k}  = \frac{C"}{k} \\C" = L

A = \frac{L}{k}  - \frac{L}{k} e^{kt}

So, D = R - A =

D = \frac{L}{k} - \frac{L}{k}  - \frac{L}{k} e^{kt}\\D = \frac{L}{k} e^{kt}

when t = 0(at initial time), the initial value of D =

D = \frac{L}{k} e^{kt}\\D = \frac{L}{k} e^{k0}\\D = \frac{L}{k} e^{0}\\D = \frac{L}{k}

4 0
3 years ago
Joanna made $104.50 for working 11 hours this week. How much money will she make if she works 15 hours?
Brut [27]
104.5/11=9.5
9.5x15=$142.50
4 0
3 years ago
Read 2 more answers
A certain company employs 6 senior officers and 4 junior officers. If a committee is to be created that is made up of 3 senior o
Zigmanuir [339]

Answer:

80

Step-by-step explanation:

A certain company employs 6 senior officers and 4 junior officers. If a committee is to be created that is made up of 3 sr officers and 1 jr officer, how many different committees are possible?

8

24

58

80*

210

I initially got this one wrong, but after I saw the answer which is 80, I was able to solve it. But im not sure if this is the proper way of solving it, or if someone can suggest a more efficient way of solving it?

This is what I did, which was wrong:

Sr Officers + Jr Officers

(6!/3! 3! = 20) + (4!/3! = 4) = 24

It seems like the correct answer is:

Sr Officers X Jr Officers

(6!/3! 3! = 20) x (4!/3! = 4) = 80

If this is the most efficient way of solving, when do you know when to add them as opposed to multiplying them in this case?

7 0
2 years ago
Select the statement that is false.
defon

Answer:

number 3 is incorrect the rest are correct

7 0
3 years ago
Other questions:
  • Applying the interest allowance method, compute Julie's and Jennifer's share of net income if Julie invested $40,000 and Jennife
    14·1 answer
  • A stadium has a rectangular area 125 m long by 80 m wide there are two semicircular ends a running track goes all the way round
    9·1 answer
  • During a carpet sale, a carpet company sold $6,792 worth of carpet. If they sold 849 square yards of carpet, what was the averag
    9·1 answer
  • A dilation with center (0,0) and scale factor "k" is applied to a polygon. What dilation can you apply to the image to return it
    12·1 answer
  • I will mark as the brainliest answer
    5·1 answer
  • Explain how to find the surface area of rectangular prisms and cubes. What formulas can you use?
    14·2 answers
  • Breeding race horse for speed is an example of
    13·2 answers
  • based on sample one, how many students from the entire student population preferred the 8:30 am start time​
    12·1 answer
  • Please help! I will mark as brainliest IF answer is right. <3
    14·1 answer
  • Pls dont guess on it
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!