Home > Algebra > Variable Expressions

How do you evaluate #(5wx)/z# if w=6, x=0.4, y=1/2, z=-3?

Answer 1

Savannah Anderson

See a solution process below:

To assess this replacement expression:

#color(red)(6)# for #color(red)(w)#

#color(blue)(0.4)# for #color(blue)(x)#

#color(green)(-3)# for #color(green)(z)#

#y# is extraneous and not needed for this problem.

Calculating and substituting results in:

#(5color(red)(w)color(blue)(x))/color(green)(z)# becomes:

#(5 xx color(red)(6) xx color(blue)(0.4))/color(green)(-3) => (30 xx color(blue)(0.4))/color(green)(-3) => 12/color(green)(-3) => -4#

By signing up, you agree to our Terms of Service and Privacy Policy

Answer 2

Kennedy Adams

To evaluate (5wx)/z, where w=6, x=0.4, y=1/2, z=-3, you substitute the given values into the expression.

(5wx)/z = (560.4)/(-3) = (30*0.4)/(-3) = 12/-3 = -4.

So, (5wx)/z = -4.

By signing up, you agree to our Terms of Service and Privacy Policy

Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.