Answer:
6 days
Step-by-step explanation:
pay 60 = -60
Let d = the number of days
30d - 60 = sister
20d = me
Equation:
30d - 60 = 20d Move 30 to the other side
-30d -30d
-60 = 20d - 30d Combine liked terms
-60 = -10d
-10 -10 Divide
d = 6
Answer:
definition the set of positive real number which greater than 0 are the nonnegative number. for ex=(1,2,3...10)
Answer:
0.4375
Step-by-step explanation:
Answer:d the arrow
Step-by-step explanation:
1) 
2)
is a right angle (perpendicular lines form right angles)
3)
is a right triangle (definition of a right triangle)
4)
and
are complementary (the acute angles of a right triangle are complementary)