renagello renagello

19-06-2018
Mathematics

contestada

what is the value of x 1/5×-2/3y=30 when y=15

Respuesta :

annshiro1989 annshiro1989

26-06-2018

Equation.
1/5 x - 2/3 y = 30

y= 15

Substitution.
1/5 x - 2/3 (15) = 30

1/5 x - 10 = 30

1/5 x = 30 + 10

1/5 x = 40

x = 200.

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