andreanaqueen25 andreanaqueen25
  • 01-11-2019
  • Mathematics
contestada

The product of two numbers is 225 but their sun is -30 what are these two numbers

Respuesta :

aontrellmartin2 aontrellmartin2
  • 01-11-2019

Answer:

15

Step-by-step explanation:

Answer Link
nguyenminhnguyet82
nguyenminhnguyet82 nguyenminhnguyet82
  • 04-11-2019

Answer:

a = - 45

b = 15

Step-by-step explanation:

The 1st number is a, and the 2nd is b.

ab=225 (1)

a+b=-30 (2)

(2) <=> a = -30 - b

Replace a with -30 - b in (1):

(-30-b)b = 225

<=> -b^2 + 30b = 225

<=> b^2 - 30b + 225 = 0

<=> b^2 - 2.15.b + 15^2 = 0

<=> (b-15)^2 = 0

=> b = 15

a = -30 - b = - 30 - 15 = - 45

Answer Link

Otras preguntas

The Ford Pinto case demonstrated that it was cost-effective in the long run to allow purchasers to die. it was cost-effective in the short run to allow purchas
36 quarts = ? gallons please show work so i can better understand?
Dubai’s many air-conditioned malls are examples of how __________ can change to adapt to climate. a. organic growth b. the natural environment c. a city grid
in the nuclei or mitocandria
Need help with this math question 2%+36*14000= ?
The term “white man’s burden” refers to
The measurement of moles of solute per liter of solution is known as
Answer the questions. 1.There are similarities between your community and the interests of the Romanian state? motivate 2.What do you think about waving the tr
And which tissue system would you find a room here in the epidermis
Medal will be given Which sections shown in the map above merged together in 1948 to support democracy in Germany? A, B, C B, C, D A, C, D A, B, D