Answer:
x = 12
Step-by-step explanation:
m<BCF and m<CFE are same-side interior angles.
Same-side interior angles are supplementary. This implies that:
m<CFE + m<BCF = 180°
where,
m<CFE = 11x°
m<BCF = 4x°
Plug in the values
11x + 4x = 180
15x = 180
x = 180/15
x = 12
Answer:
x = 22
Step-by-step explanation:
B and F are midpoints of the triangle ACE
According to the triangle midpoint theorem, the line segment connecting the midpoints of two sides of a triangle is parallel to the third side and is congruent to one half of the third side.
So BF ║ CE and BF = 1/2 CE
Given: BF = 2x and CE = 88
Plug in BF = 1/2 CE
2x = 1/2 (88)
2x = 44
x = 22
Answer:
70
Step-by-step explanation:
(Not the most streamlined way but.)
Knowing that if he had 5 tests, and a mark of 85, we can determine the total average grade Bill received. 85*5=425
Then subtract the known grades
425-(90+85+100+80)=x
425-(355)=x
70=x
Bill would have scored 70 on that 5th test
Answer:
something
Step-by-step explanation: