Answer:
63.7%
Step-by-step explanation:
11 people in total
9.1% per person
7* 9.1=63.7
Answer:
The two expression to represent area is (5 x - 10) sq. units or 5( x- 2) sq. units
Step-by-step explanation:
Here, the length of the rectangle = (x-2) units
The width of the rectangle = 5 units
Now, AREA OF A RECTANGLE = LENGTH x WIDTH
So, here AREA = 5 ( x- 2)
= (5 x - 10) sq. units
( as by Distributive property: A (B-C) = AB - AC)
Hence, the two expression to represent area is (5 x - 10) sq. units or 5( x- 2) sq. units
She has 47 total
20 are from Europe
some are from Africa,
and some from Asia
how many from Africa? hmm let's say "a"
how many from Asia? hmm let's say "b"
we know that, she has twice as many "a" as she has "b" stamps,
so, whatever "b" is, a = 2 * b, or a = 2b
so.. let us add them together

solve for "b", to see how many from Asia she has
what's "a"? well, a = 2b , that's how many African ones she has :)
Step-by-step explanation:
x² + 4x - 9
= (x + 2)² - 13
a = 2, b = -13.