Answer:
0.4r
Step-by-step explanation:
40% of the price of r dollars
To translate into an expression, we outline te keywords
Percentage of price = 40%
The price in question = $r
Hence, the expression will calculate, 40% of the price
Hence, we'll have :
40% of price
(40 / 100) * r
0.4 * r
= 0.4r
Answer:
314.2 cm^2
Step-by-step explanation:
The formula for the area of a circle of radius r is A = 3.14r^2.
With r = 10 cm, r^2 = 100 cm^2, and so the area of this circle is 314.2 cm^2, to the nearest tenth.
Theres a formula with quadatic equations which goes: “a(x-x1)(x-x2)” where x is.. well, “x”, x1 and x2 are the roots and a is the leading coefficient.
So our formula would be 2(x-4)(x-6), and if we multiply all that we get:
2x^2-12x-8x+48=
= 2x^2-20x+48 is our eqtn (if I didn’t get anything wrong, of course)
Y=3x has a positive slope, and Y=-3x has a negative slope.
If 36% equals 6,200,000, then
1% equals 6,200,000/36, and
100% equals 6,200,000/36*100 = 16,315,789
Hence, there were about 16,000,000 (sixteen million) students.
