Perimeter is how far around, so you are going to total the 2 lengths and 2 widths. A way to write that is P=2l+2w.
P = 2(5 5/8) + 2 (6 1/4)
2(5 5/8) = 10 10/8 or 11 2/8 or 11 1/4
2(6 1/4) = 12 1/2
P = 11 1/4 + 12 1/2
P = 23 3/4
Percent formula : is / of = % / 100
12 is ? % of 200..
is = 12
of = 200
% = x
now sub and solve
12/200 = x / 100
cross multiply because this is a proportion
(200)(x) = (12)(100)
200x = 1200
x = 1200/200
x = 6.......so 12 is 6% of 200 <==
Answer:
D
) Close to 50 times but probably not exactly 50 times
Reasoning:
Right in the beginning, we know that she flips the coin 100 times. Which means A and B cannot be true. Between C and D, only D makes sense because you can't be sure if something will land exactly a number of times.
Coefficient is 3
Coefficient is always the number before the “x” in this case it’s 3 the number can be negative or positive doesn’t matter
1) Put the x value on the same side of the equation
100= 160-10x+6x
100= 160-4x
2) put 160 on the other side of the equation
100-160=-4x
-60=-4x
3) divide -4 on both sides
-60/-4= -4x/-4
15=x
Hope this helps!
