Answer:
x=7, y=16
Step-by-step explanation:
2x+5=x+12
2x=x+7
x=7
y-4=x+5
y-4=12
y=16
Answer:
A)Points are A ,B,C,D,G,E
B) other names are AC, CA, ABC
C)the Rays are DE, DG
D) M refers to the plane in which these points and Rays,lines are mentioned
E) < GDE < EDG are other names for angle 1
Explanation:
A line is one which has arrow heads on both ends and extends infinitely .
A ray has arrow Head at one end.
An angle is formed by the joining of two rays or lines.
Points are specific locations on a line or ray .
A plane has two dimensions length and breadth which has a line etc drawn on it
Total number of $1 bills=7
Total number of $5 bills=8
Further explanation:
Given
Let x be the number of $1 bills
and
y be the number of $5 bills
Then according to the given statements
x+y=15
x+5y=47
From first equation:
Putting x=15-y in second equation
Putting y=8 in first equation
Hence,
Total number of $1 bills=7
Total number of $5 bills=8
Keywords: Linear equations, Substitution method
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Answer:
43.5
Step-by-step explanation:
x/2+5y-1.5
10/2+5×8-1.5
5+40-1.5
5+38.5
=43.5
