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
Serga [27]
4 years ago
11

A textbook store sold a combined total of 480 history and math textbooks in a week. The number of history textbooks sold was two

times the number of math textbooks sold. How many textbooks of each type were sold?
Mathematics
2 answers:
galina1969 [7]4 years ago
6 0

let h = history books, and m = math books

h + m = 480

h = 2m

plug in 2m for h

2m + m = 480

3m = 480

m = 480/3

m = 160

Plug in 160 for m in one of the equations

h + m = 480

h + 160 = 480

h = 480 - 160

h = 320

h = 320, m = 160

hope this helps

Gwar [14]4 years ago
4 0
H + m = 480
h = 2m

2m + m = 480
3m = 480
m = 480/3
m = 160 <=== there were 160 math books

h = 2m
h = 2(160)
h = 320 <=== there were 320 history books
You might be interested in
There are 20 pieces of bread to divide among 20 people. A man eats 3 pieces, woman eats 2 pieces and a child eats half piece of
Aleonysh [2.5K]

Answer:

14 children, 5 women, 1 man

Step-by-step explanation:

14 children which gives us 7 loves. 1 man which gives us 3 loves. 5 women which gives us 10 loves.

People: 14 + 1 + 5 = 20

Loves: 7 + 3 + 10 = 20

4 0
3 years ago
The ravens won three more games than they lost.they played 96 games.how much games did they win?
balandron [24]
x-the \ number \ of \ games \ won \ \\\\ y-the \ number \ of \ games \ lost \\\\ x= y+3 \\\\ x+y=96 \\\\ 3+y+y=96 \\\\ 3+2y=96 \\\\2y=96-3\\\\2y=93 \\\\ \boxed{y=\frac{93}{2}=46.5\approx46\ games \ lost} \\\\ x=3+46 \\\\ \boxed{x=49 \ games \ win}
4 0
3 years ago
HELP ASAP PLEASE!!!! <br> EXTRA POINTS!!
uysha [10]
The answers are A, B, and D because to find the percent, you would have to multiply the percent by the number you're trying to get out of. There are different but correct ways written in A, B, and D.
8 0
3 years ago
Y=-6x+15 <br> Y=4x-15 solve by elimination
Nikitich [7]
X=3 and y=−3 is the answer
6 0
4 years ago
compared to last year, the population of Boom Town has increased by 10%. The population is now 6,600. What was the population la
Rufina [12.5K]

Answer:

60

Step-by-step explanation:

6600 x 10% = 60&$;#;,$:#&#>$

6 0
3 years ago
Read 2 more answers
Other questions:
  • After 3.5 hours Kim had traveled 217 miles If she traveled at a constant speed how far will she have traveled after 4 hours
    11·1 answer
  • By what transformation can the set representing the inverse of a function be found? 1) reflection in the origin 2) reflection in
    10·1 answer
  • Use the equation v = h - 6 to find the value of v when h = 9.
    10·2 answers
  • Write each of these numbers inside the correct loop. (5 6 10 11 24 25)
    7·1 answer
  • I don't know how to find the answer and draw where
    10·1 answer
  • Hello please help me solve this :) will give braisnlt xo
    13·2 answers
  • Laura wants to cover a box with fabric.
    15·2 answers
  • Find 3 ratios that are equivalent to the given ratio.<br> 3/4
    8·2 answers
  • What is 2 + 100000+50000​
    15·2 answers
  • Professor Baird wants to mix a solution
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!