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
jok3333 [9.3K]
3 years ago
7

The cost of a new math textbook and a study guide together is $58. Three of the math textbooks and two study guides cost $165. H

ow much does one textbook alone cost?
Mathematics
1 answer:
kompoz [17]3 years ago
6 0

Answer:

Cost of one textbook = $49

Step-by-step explanation:

Given:

Cost of 1 textbook and 1 study guide = $58

Cost of 3 textbook and 2 study guide = $165

Find:

Cost of one textbook

Computation:

Assume,

Cost of one textbook = a

Cost of one study guide = b

So,

a + b = 58

b = 58 - a

3a + 2b = 165

3a + 2(58-a) = 165

3a - 2a + 116 = 165

a = 49

Cost of one textbook = $49

You might be interested in
573÷3 i feel like i did something wrong with the 27
Tom [10]
You did everything right. The correct answer is 191

Hope this helps
7 0
3 years ago
Read 2 more answers
If 21 is added to a number the result is 40 less than twice the number what is the number?
Karolina [17]
If 21 is added to (+ 21) a number (x) the result (=) is 40 less than (- 40) twice the number (2x)

x + 21 = 2x - 40   Add 40 to both sides
x + 61 = 2x           Subtract x from both sides
      61 = x             Switch the sides to make it easier to read
       x = 61


7 0
3 years ago
Find the mean median mode<br> 12,9,12,11,10,18,7,19,13,19
Nady [450]

Mean : The average of all the data in a set.

Median : The value in a set which is most close to the middle of a range.

Mode : The value which occures most frequently in a data set.

12,9,12,11,10,18,7,19,13,19

Mean = 13 (Average)

Median = 12 (Middle)

Mode = 12, 19 (most common)

8 0
3 years ago
2/3 (x + 7) = 10 A) 22 B) 8 C)- 1 3 D 41 3 help me quick plz
otez555 [7]

Answer:

D

Step-by-step explanation:

D BECAUSE IT IS D

4 0
3 years ago
I need help please asap!!
damaskus [11]

Answer:

I think its step 2.

Step-by-step explanation: Correct me if im wrong. Hope it helps. :)

6 0
3 years ago
Read 2 more answers
Other questions:
  • What does y=3x mean on a line graph
    12·1 answer
  • 25.2 •(-16)<br>how can i create a similar problem?​
    13·1 answer
  • Suppose you invest 1600 dollars at an annual interest rate of 4.6% compounded continuously how much will you have in the account
    15·1 answer
  • What is the perimeter of square ABCD?​
    11·1 answer
  • Can someone help me? Thank you!
    6·1 answer
  • (-6)^-1 multiply by x = 27^-1. find x
    9·1 answer
  • 11/15 - 1/4 = ????<br> no links please!
    8·2 answers
  • Linda needs to come up with a 10 percent down payment on a house priced at $127,400.
    15·1 answer
  • PLEASE HELP!!!! I WILL GIVE BRAINLIEST TO PEOPLE THAT CAN HELP ME ANSWER THIS
    9·1 answer
  • What is 560.6928631 feet to the nearest foot ?
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!