Answer:
D
Step-by-step explanation:
View the process in the above picture.
Answer:
x= -5
Step-by-step explanation:
-3x + 25 = 40
you want to put x terms on one side, numbers on another side
subtract 25 on both sides
-3x = 15
divide both sides by -3
x= -5
please hit the heart button :)
A group of k elements can be chosen from a group of n elements in
ways.
There are 20 different 3-member groups.
Answer:
The side lengths of the triangle, in order, are 11 inches, 60 inches, 61 inches.
Step-by-step explanation:
Let the shorter leg be x, the longer leg, y and the hypotenus, z.
y = 16 + 4x
z = 17 + 4x
By Pythagoras rule,
z^2 = x^2 + y^2
(17+4x)^2 = x^2 + (16+4x)^2
that is,
x^2 - 8x - 33 = 0 (A quadratic equation)
By factorising,
(x+3)(x-11)=0
either x = -3 or x = 11.
But length cannot be negative. Hence, -3 is dicarded.
x = 11 inches
y = 16 + 4x = 60 inches
z = 17 + 4x = 61 inches
157.30*.10=
157.30-15.73=
$141.57
this is still without the tax and tip or assuming there is none because it doesn't say how much they want to tip or weather they are planning to tip at all. It also doesn't say the percent of tax.
