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
Debora [2.8K]
3 years ago
11

Which statement answers this question: Casey sells half of his video games. The next day he buys 3 more. He now has 27. How many

video games did Casey have at the beginning? options: ( A.) Casey had 24 video games. ( B). Casey had 15 video games. ( C). Casey had 12 video games ( D.) Casey had 48 video games.
Mathematics
1 answer:
Usimov [2.4K]3 years ago
3 0

Answer:

D

Step-by-step explanation:

Casey has some number of video games at the beginning called x. He sells half which is 1/2 x. Then he buys 3 more so 1/2 x + 3. This is equal to his current amount which is 27. So 1/2 x + 3 = 27. Solve for x.

1/2 x + 3 = 27

1/2 x =24

x = 48

You might be interested in
PLS SOMEONE HELP PLSSS
Sav [38]

Answer:

x=17

Step-by-step explanation:

ok so since lines PR and RQ are congruent (we know because of the lines on them), that means angles P and Q are also equal.

now we can set up the equation to find x like this:

29+29+(8x-14)=180 (180 because the three angles of a triangle always equal 180)

x=17

8 0
2 years ago
What is the first derivative of r with respect to t (i.e., differentiate r with respect to t)? r = 5/(t2)Note: Use ^ to show exp
adelina 88 [10]

Answer:

The first derivative of r(t) = 5\cdot t^{-2} (r(t)=5*t^{-2}) with respect to t is r'(t) = -10\cdot t^{-3} (r'(t) = -10*t^{-3}).

Step-by-step explanation:

Let be r(t) = \frac{5}{t^{2}}, which can be rewritten as r(t) = 5\cdot t^{-2}. The rule of differentiation for a potential function multiplied by a constant is:

\frac{d}{dt}(c \cdot t^{n}) = n\cdot c \cdot t^{n-1}, \forall \,n\neq 0

Then,

r'(t) = (-2)\cdot 5\cdot t^{-3}

r'(t) = -10\cdot t^{-3} (r'(t) = -10*t^{-3})

The first derivative of r(t) = 5\cdot t^{-2} (r(t)=5*t^{-2}) with respect to t is r'(t) = -10\cdot t^{-3} (r'(t) = -10*t^{-3}).

5 0
3 years ago
What is the solution to this system?
katovenus [111]
The solution is where the two lines meet. From the the graph, it looks like
(1, -1)
6 0
3 years ago
You must spend less than $30. You have already spent $12. Let s be the amount of money in dollars you can spend now. Which inequ
goldenfox [79]

Answer:$18

Step-by-step explanation: You subtract 30 minus 12 and you get 18

3 0
2 years ago
What is the volume of this cone -radius 4ft, height of 8?
erastova [34]

Answer:

V= 134.04 ft³

Step-by-step explanation:

7 0
2 years ago
Other questions:
  • Point J (-2,1) and point K (4,5) form line segment JK. For the point P that partitions JK in the ration 3:7, what is the y- coor
    14·2 answers
  • The surface area of a cube can be found by using that expression 6X squared what is the surface area of a cube with a side of 1/
    11·1 answer
  • The number of mosquitoes in brooklyn (in millions of mosquitoes) as a function of rainfall (in centimeters) is modeled by m(x)=-
    8·2 answers
  • Twice the sum of a number and 3 is the same as 5 subtracted from the number. find the number.
    7·1 answer
  • Please help with this geometry question<br><br>is it 12.2? idk... 
    10·2 answers
  • 1. A rabbit can hop 6 feet in 2 seconds and 12 feet in 4 seconds. If the number of feet varies directly with the time the rabbit
    13·1 answer
  • What is the rule
    13·1 answer
  • Karen and Bill collect coins. Karen has x coins. Bill has 9 coins fewer than two times the number of coins Karen has. Write and
    13·1 answer
  • Type in your answer:<br> X = ?<br> Angle KPN =?<br> Angle NPO =?
    10·2 answers
  • Sherry is a waitress at a country club restaurant. She receives an automatic 15% tip which is added to the member's check for th
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!