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
ddd [48]
3 years ago
8

joanne bought 3 baseball cards for $160. if the first card was as expensive as the combined price of the second and the third ca

rds, and the second card cost $20 more than the third card, what is the price of the first card?
Mathematics
1 answer:
BARSIC [14]3 years ago
4 0
Let the price of the 3rd card be c. Now we can write the equation:
c + (c + 20) + (c + c + 20) = 160 .........(1)
Simplifying the left hand side of equation (1), we get:
4c + 40 = 160 .........(2)
Subtracting 40 from both sides of equation (2) gives:
4c = 120
from which c = $30.
Therefore the price of the second card = 30 + 20 = $50
and the price of the first card = 30 + 50 = $80.
You might be interested in
4,8,16,24 - what are the next two terms in this pattern?
Tresset [83]

Answer:

48,96

Step-by-step explanation:

As we saw it the numbers kept increasing by x2 (or times 2) so the next had to be the same.

peace

4 0
3 years ago
Read 2 more answers
Jade solved the following equation:
Black_prince [1.1K]

Answer:

its step 4

Step-by-step explanation:


3 0
3 years ago
Read 2 more answers
Q10. Consider the following algorithm:
maw [93]

Answer:

  61,940

Step-by-step explanation:

For a recursive sequence of reasonable length, it is convenient to use a suitable calculator for figuring the terms of it. Since each term not only depends on previous terms, but also depends on the term number, it works well to use a spreadsheet for doing the calculations. The formula is easily entered and replicated for as many terms as may be required.

__

The result of executing the given algorithm is shown in the attachment. (We have assumed that g_1 means g[-1], and that g_2 means g[-2]. These are the starting values required to compute g[0] when k=0.

That calculation looks like ...

  g[0] = (0 -1)×g[-1] +g[-2} = (-1)(9) +5 = -4

The attachment shows the last term (for k=8) is 61,940.

8 0
2 years ago
4. Suppose Tyler sprayed around the house for ants. Which formula would be used to find the number of ants still alive after a c
babunello [35]

Answer:

I think that the answer is A.

Step-by-step explanation:

6 0
3 years ago
Write in y= mx + b form: a line through (-3,1) having the same y-intercept as the graph of x-2y=-4
MariettaO [177]

Step-by-step explanation:

Aight, so the same intercept

- 2y =  - 4 - x =  =  =  >  \\ y =  \frac{1}{2} x + 2

m=½

y =  \frac{1}{2} x + b =  =  =  >  \\ now \: let \: us \: replace \: the \: point \\ 1 =  \frac{1}{2} ( - 3) + b =  =  =  >  \\  \frac{5}{2}  = b

soooo

y =  \frac{1}{2} x +  \frac{5}{2}

7 0
2 years ago
Other questions:
  • Which student factored the expression x3 - 3x + x2 - 3 correctly based on their answer below?
    6·2 answers
  • BRAINLIEST WHOEVER ANSWERS FIRST!
    9·1 answer
  • The total cost in dollars for a certain company to produce x empty jars to be used by a jelly producer is given by the function
    9·1 answer
  • how many 16-ounce bottels would be needed to hold the same total amount of water of water as 56 20 ounces
    10·1 answer
  • What is 7/10 - 1/15?
    5·1 answer
  • In triangle JKL,the length of side JK is 12 feet, and the length of side KL is 15 feet. What is the length of side JL?
    5·1 answer
  • Help would be great thank you!
    13·1 answer
  • He box-and-whisker plot below shows the distribution of the ages, in years, of the trees in the Gordons' back yard. The title of
    14·1 answer
  • A) What is the equation of line A<br><br> b) What is the equation of line B
    7·1 answer
  • The children's section is rectangular and has three of its corners at (-10,10), (-10,4), and (-3,10). What are the coordinates o
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!