Subtract 25 and 10 which gives you 15
subtract 5/8 and 1/8 since they have common denominators.
You get 15 1/2 when you simplify 15 4/8 in which 4/8 is the same thing as 1/2.
Answer:
4/21 a <u><em>room per hour</em></u>
Step-by-step explanation:
Rocco :
7hours———> whole room
then
in 1h ———-> 1/7 of the whole room
then
in 3h ———-> 3/7 of the whole room
therefore
Giulia will finish 4/7 of the whole room in 3h
finally,
Answer:
X=55° Y=35°
Step-by-step explanation:
X+Y=90°
Y= x-20
(X-20)+X=90°
2X-20=90°
2X=110°
X=55°
55°+Y=90°
Y=35°