alexzhang535p4q4a2 alexzhang535p4q4a2
  • 04-07-2018
  • Mathematics
contestada

The difference of two numbers is 4 and their sum is -7. What is their product?

Respuesta :

calculista
calculista calculista
  • 03-07-2019

Answer:

The product is 8.25

Step-by-step explanation:

Let

x-----> one number

y ----> the other number

I assume x>y

x-y=4 ----> equation A

x+y=-7 ---> equation B

Solve the system by elimination

Adds equation A and equation B

x-y=4

x+y=-7

-----------

2x=-3

x=-1.5

Find the value of y

x-y=4

-1.5-y=4

y=-1.5-4=-5.5

The numbers are -1.5 and -5.5

Find their product

(-1.5)(-5.5)=8.25

Answer Link

Otras preguntas

Characteristic elements of daily Chinese life were Select one: a. constant wars. b. highly decorated modes of dress. c. simple and sparsely furnished houses. d.
help me solve this image pls !!!
√a +1 -2 √a +1 +2 Rationalize the denominator
With the cold winter months fast approaching, Lungi wants to improve the overall effectiveness of operations at his NGO. He wants to keep track of all the blank
After researching the possible effects of music, Elaina proposes that if people listen to faster-paced music, their pulse rates will increase more than if they
please help me ......​
Write a detailed description of your model and how it describes that matter is moved from plants, animals, decomposers, and the environment. Pls help i need thi
Which statement describes an example of the integumentary system and immune system working together? O Blood pressure lowers to prevent loss of heat. OHair on t
true or false gettysburg and vicksburg were important union victories
1.10/11+4/5 2.1/5+1/6