Answer:
15
Step-by-step explanation:
Gregory gained 86 dollars in total and he got this money by first getting 11$ and then 5$ for each question he solved correctly, so our equation is
11+5x=86 (x being the number of questions he answered correctly)
11+5x=86 (subtract 11 from both sides)
5x=75 (divide both sides by 5)
x=15
Gregory answered 15 questions correctly
Answer:
-6.5
Step-by-step explanation:
-2(p - 1) = 15
-2p + 2 = 15
-2p = 13
p = -6.5
Answer:
SAS Theorem
Step-by-step explanation:
It would be the SAS theorem because you know 2 sides that have an angle in common on both triangles.
9514 1404 393
Answer:
a) -1 5/14
b) -1/3
c) -1 : 10
Step-by-step explanation:
a) 1/7 - 0,5·3 = 1/7 -3/2 = (1·2 -3·7)/(7·2) = -19/14 = -1 5/14
__
b) (3/4 -0,25)·(-2/3) = (3/4 -1/4)·(-2/3) = (2/4)(-2/3) = (1/2)(-2/3) = (-1·2)/(2·3) = -1/3
__
c) (1 5/6 -1,2) : (-6 1/3) = (11/6 -6/5) : (-19/3) = (11·5 -6·6)/(6·5) : (-190/30)
= (19/30) : (-190/30) = -19 : 190 = -1 : 10
