july98
contestada

Karin is also in Mr. Whittaker’s science class, and she recorded the variation in water level at a different part of the river. Karin observed that the water level there fell 1.68 millimeters per year for 1.5 years. Which expression shows a way to use the distributive property to solve for the total variation in water level at this part of the river?



1.5(-1) + 0.68
1 + (0.5)(-1)(0.68)
(-1.68)(1) + (-1.68)(0.5)
1(-1) + 0.5(-0.68)

Respuesta :

sguerrero420
(-1.68)(1) + (-1.68)(0.5)

Answer:

[tex](-1.68)(1).+(-1.68)(0.5)[/tex]

Step-by-step explanation:

Fell in water level per year = - 1.68 millimeters

Fell in level of water in 1.5 years = [tex]-1.68 \times 1.5[/tex]

Now to show this expression according to distributive property.

[tex]-1.68 \times 1.5[/tex]

[tex]-1.68 \times (1.+0.5)[/tex]

[tex](-1.68 \times 1).+(-1.68 \times 0.5)[/tex]

[tex](-1.68)(1).+(-1.68)(0.5)[/tex]

Thus Option C is correct.

Hence The expression shows a way to use the distributive property to solve for the total variation in water level at this part of the river :

[tex](-1.68)(1).+(-1.68)(0.5)[/tex]

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