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
tatuchka [14]
3 years ago
6

To solve 30times60,think

Mathematics
2 answers:
wel3 years ago
7 0
If you’re asking for a possible strategy for solving this question you can think about annexing zeros. Think 3 x 6, then add the zeros from the numbers which gives us: 3 x 6 = 18, add the zeros we took out in the beginning, giving you 1,800 as the final answer
PIT_PIT [208]3 years ago
3 0
I’m a bit confused for what answer ur asking for but they 30x60=1800
You might be interested in
Write the equation 5x − 2y = 10 in the form y = mx + b. y equals start fraction five over two end fraction x minus 10 y equals s
vaieri [72.5K]

Answer:

y = 5/2x - 5

Step-by-step explanation:

You have to rearrange the equation so that it is equal to y.

5x - 2y = 10

(5x - 2y) - 5x = -5x + 10

-2y = -5x + 10

(-2y)/-2 = (-5x)/-2 + (10)/-2

y = 5/2x - 5

6 0
3 years ago
A collection of 20 coins made up of only nickels, dimes, and quarters has a total value of $3.35. If the dimes were nickels, the
Kay [80]

Answer:  The required number of quarters in the collection is 11.

Step-by-step explanation:  Given that a collection of 20 coins made up of only nickels, dimes and quarters has a total value of $3.35.

If the dimes were nickels, the nickels were quarters and the quarters were dimes, the collection of coins would have a total value of $2.75.

We are to find the number of quarters in the collection.

Let x, y and z represents the number of nickels, dimes and quarters respectively in the collection.

We will be using the following values of nickels, dimes and quarters in form of dollar :

1 nickel = $ 0.05,   1 dime = $ 0.10   and    1 quarter = $0.25.

Then, according to the given information, we have

x+y+z=20\\\\\Rightarrow x=20-y-z~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~(i)\\\\0.05x+0.10y+0.25z=3.35\\\\\Rightarrow 5x+10y+25z=335\\\\\Rightarrow x+2y+5z=67~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~(ii)\\\\0.05y+0.25x+0.10z=2.75\\\\\Rightarrow 5y+25x+10z=275\\\\\Rightarrow y+2z+5x=55~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~(iii)

Substituting the value of x from equation (i) in equations (ii) and (iii), we have

(20-y-z)+2y+5z=67\\\\\Rightarrow y+4z=47\\\\\Rightarrow y=47-4z~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~(iv)

and

y+2z+5(20-y-z)=55\\\\\Rightarrow -4y-3z=-45\\\\\Rightarrow y=\dfrac{45-3z}{4}~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~(v)

Comparing the values of y from equations (iv) and (v), we get

47-4z=\dfrac{45-3z}{4}\\\\\Rightarrow 188-16z=45-3z\\\\\Rightarrow 16z-3z=188-45\\\\\Rightarrow 13z=143\\\\\Rightarrow z=\dfrac{143}{13}\\\\\Rightarrow z=11.

Thus, the required number of quarters in the collection is 11.

7 0
3 years ago
HELP!! T.T This is due tonight!!!
lesya [120]
D and e would be the answer
3 0
3 years ago
Can someone help me answer this? Thanks! :)
sladkih [1.3K]

Answer:

\pi

Step-by-step explanation:

\int _{-2}^2\:\left(x^3cos\:(\frac{x}{2})+\frac{1}{2}\right)\sqrt{4-x^2}dx\\

7 0
3 years ago
A(n) = -5 + 6(n - 1)
Andreas93 [3]

Answer:

domain is all reall numbers

3 0
3 years ago
Read 2 more answers
Other questions:
  • gisele runs a company that makes tablet computers. Each tablet requires an employee to assemble it and an employee to test it. T
    6·2 answers
  • The apartments in Brian's apartment house are numbered consecutively on each floor. The sum of his number and his next-door neig
    15·2 answers
  • Can someone help me with this question please?
    13·1 answer
  • If the company is planning to produce 90,000 containers of crunchy peanut butter
    15·1 answer
  • 1. Point A(-5,8) is reflected across the line y = x. What are the coordinates of A'? Show your work and explain.
    13·1 answer
  • 20. What is the volume, in terms of r, for a cylindrical
    9·1 answer
  • The circumference of the circle is about ? Inches
    9·1 answer
  • Write 6.38612 correct to 2 decimal places.​
    14·1 answer
  • Unit Test Review
    13·1 answer
  • What inverse operation should be used to isolate the variable in the equation j ÷ 12 = 50?
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!