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
Ymorist [56]
3 years ago
10

A textbook store sold a combined total of 411 psychology and history textbooks in a week. The number of history textbooks sold w

as 69 less than the number of
psychology textbooks sold. How many textbooks of each type were sold?
Mathematics
1 answer:
Juli2301 [7.4K]3 years ago
8 0

Answer:

Step-by-step explanation:

h and p are the number of history and psych textbooks, respectively.

store sold a total of 411 textbooks in a week.

h + p = 411

The number of history textbooks sold was 69 less than the number of psychology textbooks sold.

h = p - 69

Substitution

(p-69) + p = 411

2p = 411+69

p = 240

h = p-69 = 171

171 history books and 250 psych books

You might be interested in
Simplify ..............
larisa86 [58]

Answer:

The third response

Step-by-step explanation:

4 0
2 years ago
In the triangle below, what ratio represents cot Y?
arsen [322]
TanY=y/x

cotY=1/tanY

cotY=x/y
7 0
3 years ago
Solve triangle. round to the nearest tenth​
LUCKY_DIMON [66]

Answer:

37.5 ( i didn't round cause the answer looked simple already)

Step-by-step explanation:

formula for triangle is base x height divided by 1/2

Base(5) x Height(15) = 75 now divide by 1/2

75 divided by 1/2 = 37.5

(Could i have brainliest if i'm right?)

4 0
2 years ago
9, 14, 7, 9, 3, 12, 5,4
Rus_ich [418]

Answer:

mean: 65

median: 9

Step-by-step explanation:

You take all the numbers you have and add them up. Make it simple by adding smaller numbers together. Then once you have the total which is 65 you divide it by the total of numbers you have and then round because after dividing you get 8.125 and the safest way to round is to 9.

5 0
2 years ago
Can someone help with this please?
Tanzania [10]

Answer:

n=5 and it's output is -13

Step-by-step explanation:

By inspection, the inputs increase by +1 and the outputs decrease by 2

Thus ,n=4+1=5 and it's output is -11-2=-13

5 0
2 years ago
Other questions:
  • What are the zeros of this function? <br>look at graph<br>a.<br>b.<br>c.<br>d.
    13·1 answer
  • Solve for e.<br> I need help I have to hurry and turn this in!!
    13·1 answer
  • Janice saved three times as much money as Annie if any saved $45 how much did Janet save?
    10·1 answer
  • By inspection, state whether the following system has one, none, or infinitely many solutions.
    13·2 answers
  • . Six times a number diminished by 7<br>comes out to be 41. The number is ​
    10·1 answer
  • Please help me I don’t understand this!
    15·1 answer
  • Is the relation a function? why
    15·2 answers
  • 1.<br> 3.<br> 2.<br> 4.<br> Which shapes will fold into a box with no lid?
    9·2 answers
  • Irrational numbers are imaginary. true or false
    9·2 answers
  • I need help due in a Hour
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!