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
abruzzese [7]
3 years ago
13

Find two numbers, if sum is 3 and their difference is 21

Mathematics
1 answer:
Nitella [24]3 years ago
3 0

x+y =3

x-y =21

2x = 24

x = 24/2

x = 12



12+y = 3

y = 3-12

y = -9


numbers are -9 and 12

You might be interested in
Antonio sold skis for $220. His<br> wholesale cost was $165. What was the<br> percent markup?
natali 33 [55]

Answer:

Antonio paid $220 for skis he sold for $165, so his profit was $55.

Markup is a percentage increase from the wholesale price,

so let's find the percentage of $55 to $165:  

$55/$165 = 33% .

 

7 0
3 years ago
49 13/14 as a whole number
adelina 88 [10]

Answer:

Step-by-step explanation:

49 13/14.....this is a mixed fraction...it is a whole number and a fraction combined. The only thing u can do with this is turn it into an improper fraction...it cannot be " just " a whole number.....unless u want it rounded to a whole number ?

8 0
4 years ago
Read 2 more answers
-8x-3 (2x+1) = 67<br> find the value of x
goldfiish [28.3K]

Answer:

-5

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Need help asap<br> solve for x using cross multiplication 5x over 7= 2x over 3
Alona [7]

Answer:

0.4

step-by-step explanation

5x times 3 = 7 times 2x-4

first, you divide both sides by 2x

2.5x times 3 = 7-4

then, divide both sides by three

2.5x = 1

lastly, divide both sides by 2.5

x = 0.4

4 0
3 years ago
Beron wants to buy a new sound system for $145. He already has $65. He receives $20 for
zhuklara [117]

Answer:

he would need to cut 4 lawns

Step-by-step explanation:

if you take 145-65 if would need 80 left. if you take 80 divided by 20 you get 4.

4 0
2 years ago
Other questions:
  • Can Someone Help Me With This Please ..
    15·1 answer
  • The sum of two numbers is 61. The larger number is17 more than the smaller number. What are the numbers? i need to find the smal
    12·2 answers
  • bottles of water sell for $1.50 each. Graph the relationship between the number of bottles of water sold and the total cost.
    9·2 answers
  • What is the difference between 6z and z6
    15·2 answers
  • Estimate a 15% tip for a meal that cost 26.80<br><br> A. 1.35<br> B. 2.70<br> C. 4.05<br> D. 31. 05
    8·1 answer
  • Find the correct value for x in the point (x, 15), which is a point on the line in the graph below
    7·1 answer
  • Find the distance between the points (2,1), (-3,6)
    14·1 answer
  • 2(4q+3)=4q-14<br><br> What is q?? HELP ASAP.<br> ( Also show step by step please. )
    13·1 answer
  • The length of a rectangle is 4 more than half the width. Which equation could represent the area of the rectangle in terms of th
    10·1 answer
  • What is 2.4 rounded to the nearest tenth
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!