Number of students in Math136 = 480
We are given that the number of students in Math136 is 20% more than the number of students in Math123. Let the number of students in Math123 be x. So we can set up the equation as:
Number of students in Math136 = 20% more than number of students in Math123
Number of students in Math136 = 20% more than x
480 = 20% more than x
480 = 20% of x + x
480 = 0.20x + x
480 = 1.20(x)
x = 480/1.20 = 400
This means, there are 400 students in Math123.
Answer:
$5.73 and $101.23
Step-by-step explanation:
Given that
The sales tax rate is 6%
The coat cost $95.50
We need to find out the tax payment
And, the total cost including the tax
So,
The tax payment is
= $95.50 × 6%
= $5.73
And, the total cost of the coat including the tax is
= $95.50 + $5.73
= $101.23
The first thing you should do when solving equations is to check for like terms. If you do find any like terms, combine them.
6d - 3d + 2d - 6 = 4d
On the left-hand side, we can combine the d terms.
6d - 3d + 2d - 6 = 4d
5d - 6 = 4d
The next is to get the variable we're trying to solve for all alone. To do that, we'll have to add / subtract / multiply / divide on both sides of the equation.
5d - 6 = 4d
-6 = -d
Here I subtract 5d from each side of the equation which resulted the d variable almost being all alone. It's being multiplied by a -1, which is the reason why it has a negative sign. To get rid of the -1, divide both sides by -1.
-6 = -d
-6 / -1 = -d / -1
6 = d
So, d is equal to 6.
3x-7=5x=19
3x-7-5x=5x+19-5x
-2x-7=19
-2x-7+7=19+7
-2x=26
-2x/-2=26/-2
x=-13
:) Did you get that?
Answer:
Step-by-step explanation:461.6