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Paul [167]
3 years ago
11

The CD Recyclery sells used CDs for $10 each and buys them for $6 each. Bob paid $20 when he bought and sold the same number of

CDs. How many CDs did he buy?
Mathematics
1 answer:
polet [3.4K]3 years ago
7 0

Answer:

2

Step-by-step explanation:

you can figure that out by knowing the recyclery sells them for 10 and he a $20 tat means he got two of them

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8_murik_8 [283]
The least number of books that could be in the box is 30. The number of books in the box could be any number that is a multiple of 30.
7 0
3 years ago
Plzz HELP FOR POINTS AND BRAINLIST ANSWER
storchak [24]

A)Plugging in our initial statement values of y = 16 when x = 10, we get:

16 = 10k

Divide each side by 10 to solve for k:

16/10=

 k = 1.6

Solve the second part of the variation equation:

Because we have found our relationship constant k = 1.6, we form our new variation equation:

y = 1.6x

Since we were given that x, we have

y = 1.6()

y = 0


B)Plugging in our initial statement values of y = 1 when x = 15, we get:

1 = 15k

Divide each side by 15 to solve for k:

1/15

=15k

k = 0.066666666666667

7 0
3 years ago
The first part of a trip driving at 40 mph was 15 miles longer and took 30 minutes longer than the second part of the trip drivi
kenny6666 [7]

Answer:

65 miles

Step-by-step explanation:

There are two simultaneous equations . Remeber that v=d/t, 1hour = 60 minutes.

1. 40 = (d+15)/(t+0.5)

2. 50 = d/t

solving: d= 25 miles and t=0.5 hours.

The distance traveled is:

D=d+d+15

D=65 miles

5 0
3 years ago
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The systematic repayment of a loan through a set number of payments at a
Romashka-Z-Leto [24]

Answer:

D

Step-by-step explanation:

Amortization is the systematic repayment or writing off a loan through a number of payments at a specific interest rate.

6 0
3 years ago
Simplify the expression:<br> 10s+–2s
likoan [24]

Answer:

8s

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right

<u>Algebra I</u>

  • Terms

Step-by-step explanation:

<u>Step 1: Define</u>

10s + -2s

<u>Step 2: Simplify</u>

  1. Rewrite:                               10s - 2s
  2. Combine like terms:           8s
3 0
3 years ago
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