Well If you mean't 15 1/2 it is 15.5 This is because a decimal is made for parting using place values like tenths, hundredths, thousandths, etc. The 1/2 part is is .5 because 5 is half of 10.
*I explained a bit more in the comments of my answer.
Answer:
(A) 120°
Step-by-step explanation:
m∠P=x
m∠S=2x
m∠Q=x
m∠R=2x
Sum of the angles in trapezoid is 360°.
x+x+2x+2x=360
6x=360
x=60°
m∠R=2x=2*60=120
Answer:
12+133
Step-by-step explanation:
Separate this expression into two parts, (6x2) + (-19x-7)
Solve what is in the parenthesis (12) + (133)= 12+133
The simplified expression would also be 145
Answer:
8 : 6 = 24 : 18
Step-by-step explanation:
If there were 24 girls in class, there would be 18 boys.
Girls: 8, 16, 24
Boys: 6, 12 , 18
14/3 or 4.6667
Hope this helps, Good luck on the assignment.
