Answer:
37 + 62 + x=180 (angles on same line)
99 + x=180
x=180 - 99
x=81
The answer is the second graph (bottom one)
Answer:
E=60 because B=E(CPCTC)
Step-by-step explanation:
Answer:
A)
Step-by-step explanation:
In the first graph, Michelle is doing more jumps than Cintia.
In the second graph, Cintia is doing more jumps than Michelle.
Therefore, the correct graph is the first one, A).
Let's solve this by substitution.
y is given by the 2nd eqn as y = (1/3)x + 7. Subst. (1/3)x + 7 into the first eqn as a replacement for y: x + 9( (1/3)x + 7) = 3.
clear out fractions by mult. all 3 terms by 3: 3x + 9x + 63 = 3
Combine like terms: 12x = -60. Then x = -5
Find y by subst. -5 for x in the 2nd equation: y = (1/3)(-5) + 7
= -5/3 + 35/3 = 30/3 = 10.
Thus, the solution (x,y) of this system is (-5,10).
