Answer:
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Step-by-step explanation:
Answer:
11a-8
Step-by-step explanation:
Please Note that i assume 12a and 2 are positive.
(12a+2−8a+4)-(12−7a+2)
=12a+2-8a+4-12+7a-2
=12a-8a+7a+2+4-12-2
=11a-8
Answer:
B. -44
Step-by-step explanation:
0.3x-7=0.8x+15
first subtract 0.3x to the other side of 0.8x which will equal
-7=0.5x+15
Then subtract 15 to the othe side of the equal sign which will be
-22=0.5x
Then divide both sides of 0.5( use calculator and put in -22/0.5)
which will be -44
YES!
You know it like this:
if something (x)is 1/10 of a whole(y), then you need 10 of this for the whole (y).
So the whole is then:
y=x*10
if x=40:
y=40*10=400,,
so yes, 40 is 1/10 of 400.
