Notice that the 2 expressions have 2 common terms.
(r-s) is just (s-r) times (-1)
similarly
(t-s) is just (s-t) times (-1)
this means that :
(r-s) (t-s) + (s-r) (s-t)=-(s-r)[-(s-t)]+(s-r) (s-t)
the 2 minuses in the first multiplication cancel each other so we have:
-(s-r)[-(s-t)]+(s-r) (s-t)=(s-r) (s-t)+(s-r) (s-t)=2(s-r) (s-t)
Answer:
d)<span>2(s-r) (t-s) </span>
Answer:
w = 4
Step-by-step explanation:
1. Isolate the variable by adding 9 to both sides
--> 4w = 16
2. Divide each side by 4
--> w = 4
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Thank you!
80-32 ÷ 2= 24
( you just do it sdrawkcab)
backwards
Answer: $380 per week
Step-by-step explanation:
Assuming that Jefferson works the same amount each week, you need to divide the total that he earns by four weeks in order to determine how much he made each week.
$1,520 divided by 4 equals $380 per week.
