Answer:
d =
Step-by-step explanation:
6(2c + 3d) = 5(4c - 3d)
6(2c) + 6(3d) = 5(4c) - 5(3d) distribute out the terms
12c + 18d = 20c - 15d
18d + 15d = 20c - 12c get all like terms onto the same side
33d = 8c
d = divide by 33 to isolate the d variable
Answer:
<8 and <2 | <4 and <2 \ <3 and <5 |
Step-by-step explanation:
Interior alternate and vertical theorms
It is not a very tough question as it has all the information's required to find the necessary answer. It is already given that 82 1/2% of a certain number is 330. It is required to find the unknown number. So we have to create an equation with a single unknown number.
Let us assume the number to be = x
then we can easily write the equation as given below.
82 1/2% x = 330
(165/4)%x = 330
(165/400)x = 330
x = (330 * 400)/165
= 2 * 400
= 800
So the unknown number is 800.
The answer you have selected is correct. The answer to this question is 90.
Answer: 0
Step-by-step explanation:
The disciminant \Delta tells you how many real solutions a quadratic equation has, depending on its sign:
\Delta>0\implies\text{2 solutions}\\\Delta=0\implies\text{1 solution}\\\Delta<0\implies\text{no solutions}