Answer:
B . 1500 children and 700 adults
Step-by-step explanation:
<h2><u>How many children and how many adults attended?</u></h2>
create an equation
make use of variables:
children --x
adults --y
1.5x + 4y = 5050
x + y = 2200
<u><em>now make use of the options given and place them into the equation .</em></u>
lets try the first one
1.5 * (700) + 4*(1500) = 7050
<h3>HENCE : A IS WRONG </h3>
lets try the second one
1.5 * ( 1500) + 4 *(700) = 5050
<h3>HENCE : B IS CORRECT..</h3>
<u>the answer is B.</u>
you can check the others if you want to , so that you are able to see if you are correct. ( optional)
Three times m,
so it would be three times the value of m.
B.) sometimes because it jusy depends on the points
Answer:
x = -1±sqrt(5/3)
Step-by-step explanation:
3x^2+6x=2
We will use completing the square
Factor out a 3 on the left
3(x^2 +2x) = 2
Divide each side by 3
3/3(x^2 +2x) = 2/3
(x^2 +2x) = 2/3
2/2 = 1 1^2 =1
Add 1 to each side
(x^2 +2x+1) = 2/3+1
(x+1) ^2 = 2/3 +3/3
(x+1)^2 = 5/3
Take the square root of each side
sqrt((x+1)^2) = ±sqrt(5/3)
x+1 = ±sqrt(5/3)
Subtract 1 from each side
x+1-1 = -1±sqrt(5/3)
x = -1±sqrt(5/3)
X^2+10x+25= 24+25
(x+5)^2= 49
x+5= +-7 (plus or minus 7)
x= -7-5
x=-12
x=7-5
x=2
Final answer: x={-12, 2}
