BRUHNEEDSWAG
BRUHNEEDSWAG BRUHNEEDSWAG
  • 18-01-2017
  • Mathematics
contestada

1. y varies directly with x, and y = 7 when x = 2. What is the value of y when x = 5?
HELP ME ASAP

2.y varies directly with x, and y = 5 when x = 4. What is the value of x when y = 8?

Respuesta :

DOGLOVER88 DOGLOVER88
  • 23-08-2017
1. y=mx where m is the constant

7/2 = y/5
2y = 35
y = 35/2
y = 17.5


2. y=mx where m is the constant

5=m4
m= 5/4
8=5/4 x
x= 6.4
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