Answer: a) 10x-6x and c) 12x+2x-10x
Step-by-step explanation:
Lets start by simplifying all the expressions
a) 10x-6x=4x
b)7x+3x=10x
c)12x+2x-10x=14x-10x=4x
d)x-x+2x=2x
As you can see a and c both simplify to 4x meaning that is our answer.
Answer:
yes,£1250
Step-by-step explanation:
(60%=£750)÷6
(10%=£125)×10
100%=£1250
Answer:
The first one
Step-by-step explanation:
The slope is 45
The y-intercept is 123.95
The total is 753.95
So we want to know what is the difference in magnitude of a large quake M(l) and a small quake M(s) in the Richter scale if the amplitude of a large quake A(l) is 1000 times bigger than the amplitude of a small quake A(s) and the formula is M(l)-M(s)=log{A(l)/A(s)}. So the large amplitude is 1000 bigger than the small amplitude: A(l)=1000*A(s). When we insert that into the formula we get:
M(l)-M(s)=log{1000*A(s) / A(s)}, because the A(s) cancel out, so we get:
M(l)-M(s) = log{1000} = 3.
So the difference in magnitude on the Richter scale is M(l)-M(s)=3.