simiyi1983
11.11.2019 •
Mathematics
Acomputer repair company charges $50 for an
appointment. for 2 hours of repair work, it charges
a total of $120. what is the total charge for 5 hours of
repair work?
Solved
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Ответ:
$277
Step-by-step explanation:
FIRST HALF HOUR=50
NEXT HOUR=37*2=74
PARTS=103
50+37*2+103=50+74+103=$227
Ответ:
Q 5.9
Step-by-step explanation:
Que el dinero gastado por Juan sea x
Deja que el dinero gastado por Carolina sea y
Si el dinero total gastado es Q 15
Luego;
x + y = 15 (1)
De la segunda oración;
y = x + 3,2 (2)
Sustituyendo (2) en (1)
x + x + 3,2 = 15
2x + 3,2 = 15
2x = 15 - 3,2
2x = 11,8
x = 5,9
x = Q 5.9
Por lo tanto Juan gastó Q 5.9