06family 06family
  • 26-02-2019
  • Mathematics
contestada

The sum of two numbers is 20. Their difference is 4.

Respuesta :

ameliawebb0515
ameliawebb0515 ameliawebb0515
  • 26-02-2019

X-Y=4

X=Y+4

(Y+4)+Y=20

2Y=20-4

Y=16/2

Y=8 ANSWER.

Explanation:

 X-8=4

X=4+8

X=12 ANSWER.

PROOFS:

8+12=20

20=20

8-4=4

4=4

Answer Link
kamora80
kamora80 kamora80
  • 26-02-2019
X=12 that the answer
Answer Link

Otras preguntas

The hospital shop buys cereal bars in pack of 4 . In one day they sell 58 cereal bars. How many packs of cereal bars did they use that day?
If the sentence has an error in subject and verb agreement, type the correct verb form. If the sentence is correct, type C. Remember that you must spell your an
Why was the Declaration of Independence written?
How many valence electrons are in an atom of phosphorus?
1kg costs £1.28. what is the cost of 250g
what is 2 gallons minus 5 quarts
Where did Abraham Lincoln die?  Who killed him?
write 63 as a product of prime factors
How many pennies remain when 68 is divided by 7
what is 5/6 as a percent rounded to the nearest hundredth