Welcome90
Welcome90 Welcome90
  • 03-06-2020
  • Mathematics
contestada

The sum of two numbers is 39. Their difference is 21. What are the two numbers?

Respuesta :

345182
345182 345182
  • 03-06-2020

Answer:

30 and 9

Step-by-step explanation:

x+y=39 , x-y=21

Solve for x:

x+y=39 , x-y=21

x= 30

Substitute x with 30:

(30)+y=39 , (30)-y=21

Solve for y:

y=9

Answer Link
OkBroomar OkBroomar
  • 03-06-2020

Answer:

30 and 9

Eeexplination;

Answer Link

Otras preguntas

PLS HELP ASAP!!! domain & range of g(x)?
1 A backyard fruit bat watches, “Swinging mallets! Spinning balls in a host of colors! A croquet set straight from the fairest of three-dollar garage sales.” Th
Steve and josephina run a total of 42 miles in a week. Steve ran six fewer miles than josephina. How many miles did josephina run?
Describe the appearance of beowulf and his men as they enter heorot
Need help with True or False on roots!
Including a 6% sales​ tax, an inn charges $265 per night. Find the​ inn's nightly cost before the tax is added
Which of the following elements would not be considered a nonmetal
The use of what was particularly important for the advancement of civil rights
What is a number that has a prime factorization with 3 distinct factors?
Why do you have to drink water