Number of girls at the time of the assembly started = w
Number of girls left = 40% of w
Remaining girls = 
Now, the ratio of the number of boys to girls became 3 to 4.
Let n be the number of boys.
Then, 
Or, 
20n = 9w
or, n = 
Total number of boys and girls = 
Hence, the total number of boys and girs is 
Answer:
thjanks
Step-by-step explanation:
thanks
Assuming his house payment is $468.21
you just add them all together
468.21+1231+1087= $2786.21
then rounded to the nearest dollar
$2786
Answer:
(-3,2)
Step-by-step explanation:
1) -2x+y=8
you need to leave the Y alone on one side. Then, the term -2x goes to the other side with its opposite sign which is +.
y=8+2x
2) y=2x/(5-8)
3) 8+2x=2x/(5-8)
now, you need the x value. for that, you need to leave x alone on one side.
8+2x=2x/(-3)
8+2x=-(2/3)x
8=-(2/3)x-2x
8=-(8/3)x
8/-(8/3)=x
-3=x
4) you now have the x value. you need the y value. for that, replace the x in one of the given equations. let´s use the 1st equation.
-2x+y=8
y=8+2x
y=8+2*(-3)
y=2
result:
x= -3
y=2
Answer: x = 8
because The upper triangle is an isosceles triangle (the two sides are equal)
=> 5x + 5 = 45°
<=> x = (45 - 5) : 5
<=> x = 40:5 = 8
Step-by-step explanation:
