Answer:
Step-by-step explanation:.
Answer:
x = 19
Step-by-step explanation:
Trapezium area formula: 
, where a & b are the two bases.
Now, if we plug in our known values, we can solve for the missing base.
24 boys and 40 girls because the ratio is boys to girls
Answer:
y= -x
Step-by-step explanation:
<u>slope- intercept form</u>
y= mx +c, where m is the slope and c is the y-intercept.
Given that the slope is -1, m= -1.
Substitute m= -1 into the equation:
y= -x +c
To find the value of c, substitute a pair of coordinates into the equation.
When x= 2, y= -2,
-2= -2 +c
c= -2 +2
c= 0
Thus, the equation of the line is y= -x.
A circle is 360 degrees so 360 divided by 20=18 so 20 degrees is one 18th of a circle
