The three steps shown below were used to find an expression equivalent to 2/5 (15x- 30y) +10x

step 1: ?

step 2: 16x - 12y

step 3: 4(4x - 3y)

which expression could be used as step 1?

a) 2/5 (25x - 30y)
b)6x -12y +10x
c)6x - 30y +10x
d)15(x -2y) + 10x

option B is correct

Step 1.

Step-by-step explanation:

Given the expression:

Using distributive property:  

Apply distributive property in the given expression we get;

Combine like terms;

Now, factor a number means to break it up into numbers that can be multiplied together to get the original number

Therefore, the expression could be used  step 1 as,  

Three steps are:

Step 1.

Step 2.

Step 3.

50

step-by-step explanation:

-12 > a

step-by-step explanation:

-11 > 1 + a

subtract 1 from each side

-11 -1> 1 -1+ a

-12 > a