If 3n + 7 = 25, then find the value of the expression 8n - 3]
1 answer:
Answer:
n=6,
SAS,
63
Step-by-step explanation:
3n+7=25
3n=25-7
3n=18
n=18/3
n=6
_______________________________
ΔDEF is congruent to ΔXYZ
DE=XY(side)
<E=<Y (angle)
EF=YZ (side)
by SAS congruence criteria ΔDEF=ΔXYZ
_________________________
(Linear pair)
180°-117°
=63
Answer=63
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70 x 8.5% = 70 x 0.085 = 5.95
Answer:
180-97=83
x=83
Step-by-step explanation:
W = 195
2/5D = 4/5W
2/5D = 4/5(195)
2/5D = 156
D = 390
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