8 * x * 2 * y =
8x * 2 * y =
16x * y =
16xy or 16yx....but not 8x + 2y
3(x−5)/2=2(x+5)/3
Cross-multiply.
(3(x−5))/2=(2(x+5))/3
3(x−5)*(3)=2(x+5)*(2)
9x−45=4x+20
Subtract 4x from both sides.
9x−45−4x=4x+20−4x
5x−45=20
Add 45 to both sides.
5x−45+45=20+45
5x=65
Divide both sides by 5.
5x/5=65/5
x=13
Answer:
b
Step-by-step explanation:
The sum of
7.8 and 7.02 would be
14.82
because
7.8
+7.02
------------
14.82
hope this helps :)
The answer is b (I think not really sure)
