angelkel9898
angelkel9898 angelkel9898
  • 18-02-2016
  • Mathematics
contestada

Sum of two numbers is 24 and the difference is 15.What are the two numbers ?

Respuesta :

TSO
TSO TSO
  • 18-02-2016
Translate that into an equation, and we get:

a+b = 24
a-b = 15

If we add these two equations, we get:

2a = 39
a = 39/2 = 19.5

Plug back in a = 19.5 and solve for b

a + b = 24
19.5 + b = 24
b = 4.5

The two numbers are 19.5 and 4.5.
Answer Link

Otras preguntas

Hi, so im stuck on this question:8 divided by 1/5any help would be great! :)
Choose the possible number of solutions for these equations.2x = 2y + 22y = 2x - 2
Search results for "markers are sold in boxes. packs, or as single markers . each box has 10 packs . each pack has 10 markers .draw pictures to show two ways to
How has the bill of rights been important in american history since 1791?
which is an example of an organism a. soil b. iceberg c. mold d. a molehill
this exspansion slot essentially replaced PCI and AGP slots
PINT IS 16 OUNCES AND THE PRICE IS $3.98 AND A QUART IS 32 OUNCES AND THE PRICE IS $5.98 WHAT IS THE UNIT RATE TO THE NEAREST CENT PER OUNCE FOR EACH
Why is carbon considered tetravalent?
is 1 ton bigger than 3,400 pounds
What is another word for carbon fiber?