The third one, divide 17 by 125
Answer:
2x = 54, 3x = 81
Step-by-step explanation:
135 degrees = 2x + 3x
5x = 135
x = 27
2x = 54
3x = 81
Answer:
17. (2)
Step-by-step explanation:
-5x(x+7)(2x-3)=0
divide both sides by -5
x(x+7)(2x-3)=0
*When the product of factors equals 0, at least one factor is 0*
Set the three factors up to zero
x=0
x+7=0
2x-3=0
solve the equation
x=0
x=-7
x=3/2
this equation has three solutions from least to greatest being; -7,0,3/2
And for number 18, that equation cannot factor, that being the error.
Let me know if this was unclear, I'll be happy to further help!
Answer:
40%
Step-by-step explanation:
When all 480 sixth-grade students at Golden State Middle School were polled, results showed that 192 students were dissatisfied with the music played at the school dance. What percentage of sixth-grade students does this represent?
This is calculated as
(Number of dissatisfied students/Total number of students) × 100
= 192/480 × 100
= 40%
The percentage of sixth-grade students that this represents is 40%
Answer:
x=-4, y=7
Step-by-step explanation:
-5x-10y=-50...(1)
Multiply both sides by -1:
5x+10y=50
5x=50-10y
x=(50-10y)/5
Substitute <u>x=(50-10y)/5</u> into second given eqaution:
10(50-10y)/5+8y=16
Cancel out common factor 5:
2(50-10y)+8y=16
100-20y+8y=16
-12y=16-100
-12y=-84
y=84/12
y=7
Substitute y=7 into equation (1)
-5x-10(7)=-50
-5x-70=-50
-5x=-50+70
-5x=20
x=-20/5
x=-4