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Paraphin [41]
3 years ago
11

Andrew bought 3 baseball cards for $240. After a few months, he got an offer from his friend Jack to buy the first card for doub

le its original value, along with either the second or third card. Andrew decided to sell the first card (at double its original value) along with the second card (at its original price) and got $320 for it. Or, selling the first card (at double its original value) card along with the third card (at its original price) would have only got him $280. What were the original prices for each of the 3 baseball cards? (80, 120, 40) (80, 130, 30) (130, 90, 20) (120, 80, 40) NextReset
Mathematics
2 answers:
Rzqust [24]3 years ago
8 0

Answer:

D. (120, 80,40)

Step-by-step explanation:

FOR PLATO USERS, D IS THE CORRECT ANSWER!!!

iragen [17]3 years ago
3 0
D. (120,80,40) just add it up really
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On Monday, 339 students went on a trip to the zoo. All 6 buses were filled and 9 students had to travel in cars. How many studen
ANEK [815]

Answer:tinham em cada onibus 55 alunos

Step-by-step explanation:

9 alunos tiveram que viajar de carro ,ou seja apenas 330 alunos foram de onibus , 339-9 igual a 330 .

Depois de conseguir esse resultado divida o numero de alunos (330) por numero de onibus (6) o resultado sera 55.

3 0
3 years ago
Cody and his friends started playing a game at 6:30 p.M. It took them it took them 47 minutes to finish the game at what time di
zaharov [31]

Answer:

7:17 PM

Step-by-step explanation:

Add another 30 minutes to 6:30 = 7:00 PM

    47-30 = 17

add the remaining 17 minutes to 7:00 = 7:17 PM

7 0
4 years ago
Five more than three times the number is one-third more than the sum of the number and itself.
disa [49]

The sentence is converted into a mathematical equation will be 3n + 5 = n + n + 1/3. Then the correct option is C.

<h3>What is Algebra?</h3>

The analysis of mathematical representations is algebra, and the handling of those symbols is logic.

Five more than three times the number is one-third more than the sum of the number and itself.

Let the number be n.

Then convert the sentence into a mathematical equation. Then the equation will be

3n + 5 = n + n + 1/3

The sentence is converted into a mathematical equation will be 3n + 5 = n + n + 1/3. Then the correct option is C.

The complete question is attached below.

More about the Algebra link is given below.

brainly.com/question/953809

#SPJ1

5 0
2 years ago
a scalene triangle has an area of 20.335 square centimeters. the height of the triangle is 8.3 centimeters. what is the length o
UNO [17]
Area of triangle = (1/2)*base*height

20.335 = (1/2)*base*8.3

2*20.335 = base*8.3

(2*20.335) / 8.3 = base          Use your calculator.

4.9 = base

base = 4.9cm 
5 0
3 years ago
On a particular production line, the likelihood that a light bulb is defective is 10%. seven light bulbs are randomly selected.
amid [387]

Answer:

0.9995

Step-by-step explanation:

10% = 0.10

1 - 0.10 = 0.9

n = number of light bulbs = 7

we calculate this using binomial distribution.

p(x) = nCx × p^x(1-p)^n-x

our question says at most 4 is defective

= (7C0 × 0.1⁰ × 0.9⁷) + (7C1 × 0.1¹ × 0.9⁶) + (7C2 × 0.1² × 0.9⁵) + (7C3 × 0.1³ × 0.9⁴) + (7C4 × 0.1⁴ × 0.9³)

= 0.478 + 0.372 + 0.1239 + 0.023 + 0.0026

= 0.9995

we have 0.9995 probability that at most 4 light bulbs are defective.

6 0
3 years ago
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