curlyfryhorse1
contestada

Solve

1- −45÷(−9)=?


2- −72÷(−8)=?


3- −21=0.07z


4- −8−(−2+7)2


Which of the following expressions are equivalent to


−44+40?



−4(11−10)



2(−22+10)


None of the above


Will give brainliest

Respuesta :

Answer:

DOWN BELOW

Step-by-step explanation:

1)5

2)9

EXPLANATION FOR NUMBER 3

-21=0.07z

We move all terms to the left

-21-(0.07z)=0

We add all the numbers together, and all the variables

-(+0.07z)-21=0

We get rid of parentheses

-0.07z-21=0

We move all terms containing z to the left, all other terms to the right

-0.07z=21

z=21/-0.07

z=-299+0.07/0.07


4)NEGATIVE 6 (I THINK)

Which of the following expressions are equivalent to  

I THINK IT IS NONE OF THE ABOVE



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