Answer:11
Step-by-step explanation:
Boys : girls=7:1
Sum of ratio=7+1=8
Let them number of girls be y
Then they number of boys=y+66
Total number of pupils=y+y+66
Total number of pupils=2y+66
Number of girls=(girls ratio)/(sum of ratio) x (total number of pupils)
y=1/8 x (2y+66)
Cross multiply
y x 8=2y + 66
8y=2y + 66
Collect like terms
8y-2y=66
6y=66
Divide both sides by 6
6y/6=66/6
y=11
The number of girls is 11
We can use a trig function to find the measure of angle T.
tan(T) = 18/13
Take the archtangent on both sides since we are searching for an angle.
arctan(tan T) = arctan(18/13)
T = 54.16°
The measure of angle T is 54.16°.
Answer: 2) Plant C is producing at a cost greater than the goal.
Answer:
52 squared units
Step-by-step explanation:
Area = L x W. And always put squared and whatever the unit is, in this case, squared units.
Answer:
-5/4
Hope this helps!
Step-by-step explanation:
To get from 3 to 8 is 5 and from -4 to -8 is a -4. The first digits are x but are the second number of the slope. The second digits are y but the first number of the slope.
