56 students represents 100 % and
X boys represent 34%,
so x= 56•34/100= 19.04 so approximately 19 boys
56-19= 37 girls signed up.
Now 37 girls represent 100% and 31 girls represent x % ,
So x= 31•100/37= 83.78% about 84% of the girls attended
Answer:
13
Step-by-step explanation:
You just have to minus 17 with 4 to get the answer!
Distance = 17 - 4 = 13 units
9514 1404 393
Answer:
5 seconds
Step-by-step explanation:
Suppose the front parts of the trains meet at point A. Since both are the same length and traveling the same speed, each will pass point A in time ...
time = distance/speed
time = (1/18 mi)/(40 mi/h) = (1/720 h) × (3600 s)/(1 h) = 5 s
That is, the rear part of each train will be at point A 5 seconds after the front part.
The rear parts will pass each other 5 seconds after the front parts meet.
Step-by-step explanation:
the opposite angles are equal
i.e. i) < A = <C ii) < B = < D
the opposite sides are equal that is
i)AB =CD
ii) AD= BC
the diagonals bisect each other
i) AO=OC
ii)BO=OD
the adjacent angle are supplementary . that is
i)<D + < C=180 DEGREE
ii)<A+<D=180degree
iii)<B+<C=180 degree