samieskyy7486 samieskyy7486
  • 04-01-2018
  • Mathematics
contestada

Find two positive numbers whose difference is 14 and whose product is 975

Respuesta :

anchitthawi
anchitthawi anchitthawi
  • 04-01-2018
a-b=14 ----(1)
a*b=975 ----(2)

(1) a=14+b ----(3)
put (3) in (2)
(14+b)b = 975
14b+b^2 = 975
b^2 + 14b - 975 = 0
(b+39)(b-25) =0
so b = -39 or b = 25
if b = -39 ×××× it's not a positive number
so b = 25 then a = 14 + b = 14 + 25 = 39

answer a=39, b=25
Answer Link

Otras preguntas

The cell membrane of a red blood cell will allow water, oxygen, carbon dioxide, and glucose to pass through. Since other substances are blocked from coming in,
write 80 as a prime factor?
why do you think many Cubans support Castro
explain how you know that the quotient 47.3÷10×10 is equal to 47.3÷0.1
Besides making laws, what are some other jobs of the House of Representatives and senate?
what is 25/1000 reduced
Name from least to greatest 60 miles per hour, 24 feet per second, 45 kilometers per hour.
round 32.697 to the nearest tenth
Danny has a 15-foot board that he wants to use as a motorcycle ramp. If Danny wants the end of the ramp to be 4 feet off the ground, what angle will be formed b
what is 12.09 and 9.88 rounded to the nearest hundreth