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
podryga [215]
3 years ago
15

When printing an article of 2400 words, an entrepreneur decides to use two sizes of letters, using the largest one a printed pag

e contains 1200 words. Using the smallest, the page contains 1500 words the article must occupy 17 full pages in the magazine how many pages must be printed using small letters?
Mathematics
1 answer:
olga55 [171]3 years ago
6 0

Step-by-step explanation:

x= Number of small pages

y= Number of full pages

1 x + 1 y = 21 .............1

Total words

1200 x + 1500 y = 27000 .............2

Eliminate y

multiply (1)by -1500

Multiply (2) by 1

-1500 x -1500 y = -31500

1200 x + 1500 y = 27000

Add the two equations

-300 x = -4500

/ -300

x = 15

plug value of x in (1)

1 x + 1 y = 21

15 + y = 21

y = 21 -15

y = 6

y = 6

x= 15 Number of small pages

y= 6 Number of full pages

You might be interested in
For sin2x+cosx=0, use a double-angle or half-angle formula to simplify the equation and then find all solutions of the equation
Archy [21]

Answer:

Step-by-step explanation:

Given is a trignometric equation in x, as

sin2x+cosx=0

TO make it in one trig ratio, we can replace sin2x as 2sinx cosx

WE get now

2sinxcosx+cosx=0\\

cosx(2sinx+1)=0\\cosx=0, sinx =-0.5\\

Principal solution is x=\frac{\pi}{2} , \frac{-\pi}{6}

x = ±π/2 + 2kπ, where k is any integer or

x=±pi/6 +k pi, where k is any integer.

General solution is

4 0
3 years ago
(8x-7)+5 when x is 2<br><br>​
Irina-Kira [14]

Answer:

If X=2 then the equation would be solved starting with 8x2=16 then take 16 and subtract it by 7 which would equal 9, then you take 9 and add 5 to it and that would give you the answer of 14

Step-by-step explanation:

(8x-7)+5   x=2

(8x2-7)+5

(16-7)+5

9+5

<u>Answer 14</u>

I hope this helps you

4 0
4 years ago
Please help me with this, it’s due in an hour
Elena-2011 [213]
#3. For each hour worked, the employee makes $15/hour. This is true for every hour he works, so if he works for 4 hours he will make $60.

#4. For every second, the hot air balloon increases height by 5 feet.

#5. X&Y are proportional because for every hour, 5 feet are gained. Thus, after 7 hours, 35 feet are gained.

Thats all i have time to do right now. Good luck :)
4 0
3 years ago
Pls help me solve this question
Maurinko [17]

Answer:

1 . x 3 +  3 x 2 y  +  3 x y 2  +  y 3

2. x 3 -  3 x 2  y  +  3 x y 2  -  y 3

3. a + b

4 . a - b

Step-by-step explanation:

Hope this answer helps you :)

Have a great day

Mark brainliest

4 0
3 years ago
Is the following number rational or irrational?
mariarad [96]

Answer:

it is rational cause it can be turned into a fraction 0.7= 7/10

7 0
3 years ago
Other questions:
  • NEED HELP ASAP 70 POINTS
    5·1 answer
  • Donald took a math test and got 15 answers correct and 5 incorrect how many questions were on the test
    12·2 answers
  • What do I have to do in this math problem
    9·2 answers
  • What is the margin of error for a sample statistic for a population with a standard deviation of 5.75?
    15·2 answers
  • The length of time a person takes to decide which shoes to purchase is normally distributed with a mean of 8.54 minutes and a st
    9·1 answer
  • #10-12!!! look at picture!!! I don't give out points for free!!! T.T
    7·2 answers
  • Why is it not possible to form a right triangle<br> with the lengths 2, 4 and 7?
    11·1 answer
  • A line passes through the points(-9,-9) and (-6,-6)<br> Fine the slope of the line
    7·1 answer
  • Find the unit rate and slope of the graph (ignore what I put down)
    15·1 answer
  • Select the correct answer.
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!