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

Given the sequence 5; 12 ; 21; 32; .... a determine the formular for the nth term of thw sequance . 2 determine between which two consecutive terms in the sequ
Which measurement is most accurate to describe the weight of a dime? 25 mg 120 g 0.5 kg 5,700 mg
how come flowers usually contain more stamen the pistils
Choose all the numbers that are multiples of 12. 22 48 12 36 64 56 60
Is historical context created in the monks tale
Which predator is typically found in Central Africa (but occasionally at geocode 34.043021, -118.2668356) and slays its opponents through a rapid application of
salt water is classified as a
Is this all correct? first one to answer is brainliest! thx (:
What is the definition of the Lactic Acid system?
list all the proper nouns The last group of raiders to terrorize western Europe were the Vikings, fierce Scandinavian warriors who almost overran England befo