Seudónimo Seudónimo
  • 24-06-2020
  • Mathematics
contestada

The value of y varies directly with x, and y = 40 when x = -5. Find y when x = 8

Respuesta :

Centio33
Centio33 Centio33
  • 24-06-2020

Answer: y=-64

Step-by-step explanation:

From the first sentence: the value of y varies directly with x:

y∝x

y=cx where c=variation constant

When y=40 x=-5

40=-5c

Therefore c=-8

To find y when x=8

y=cx where c=-8 and x=8

y=-8*8

y=-64

Answer Link

Otras preguntas

Is -18.75 a real number,irrational,rational,integer,whole or natural? it can be more than one choice
Please help me with this
If 300 of 100,000 residents signed the petition against the two children’s books, what is the probability that a resident chosen at random signed the petition?
Great Britain colonies border what body of water?
How do you do this??
luce123 Which ordered pair is the solution to the system of equations? x+5y = -15 y=1/5x + 1 A. (-10,-1) B. (-7,-0.4) C. (-8,-1.2) D. (-5,-2)
which sentence best explains the reason for Adam and Eve's fall? a.)they wanted independence more than protection. b.)they wished to give a forbidden gift to go
Almost half the private-sector jobs in this country come from small businesses? True or False?
how do I solve this problem? i dont remembet how to
Which type of tissue is composed of dense irregular connective tissue arranged in multiple layers in which the collagen fibers in one layer run in the same dire