Answer:
x=−16/3 or x=2
Step-by-step explanation:
Step 1: Simplify both sides of the equation.
3x2+10x−8=24
Step 2: Subtract 24 from both sides.
3x2+10x−8−24=24−24
3x2+10x−32=0
Step 3: Factor left side of equation.
(3x+16)(x−2)=0
Step 4: Set factors equal to 0.
3x+16=0 or x−2=0
Answer:
x=20
Step-by-step explanation:
We want to isolate the variable x.
First, we multiply both sides by 2 to get
(x-2)=18
Next, we add 2 to both sides, which gives us,
x=20
Answer: See explanation
Step-by-step explanation:
Your question isn't complete but let's help out by giving some values to the question.
Let's say there are 230 students in a school. This number is 15% more than it was last year. Calculate the number of students last year.
Let the number of students last year be x.
Since there's a 15% increase, this implies that (100% + 15%) = 115% of x equals to 230. This will be:
115% of x = 230
115% × x = 230
115/100 × x = 230
1.15x = 230
x = 230/1.15
x = 200
There were 200 students last year.
Just assign the missing values and use the above method and you'll get your answer.
First you have to find out how many make a certain percent so..125/100=1.25 meaning that 1 person repsresent's 1.25%
So 22*1.25= 27.5% meaning 27.5% came from other comunities!
Any number to the power of 0 equals 1.
The number in decimal notation without exponents is 4.48