Use properties of addition and subtraction to evaluate the expression. −28−47−12 enter your answer in the box.

The answer is -87

Step-by-step explanation:

This problem bothers on the well we understand how to solve expressions using "minus" operators

Given the expression

−28−47−12

Let's begin by solving the first two terms

Hints: using monetary terms say in dollars

MINUS = OWING

PLUS = HAVING

so in this case we are owing

$28, $47 and $12

We are owing altogether $87

Now Mathematically

-(28+47+12)

-(87)

=-87

this is not the answer this is just a question. is this middle school math?

step-by-step explanation:

step-by-step explanation:

given that there are two triangles j'k'l' and jkl>

the former is got by dilating the second one.

when drawn on a grid, (graph paper) coordinates of vertices of first triangle is

(6,12)j, (9,6)k and (12,9)l

side jk has length = distance between j and k

=

side j'k'=distance between j' and k'

=

ie j'k'l' has sides 1/3 of that of corresponding sides of jkl.

hence scale factor of 1/3 is used to get j'k'l'from jkl