Answer:
x = 12
Step-by-step explanation:
CDEF is a cyclic quadrilateral.
• the opposite angles of a cyclic quadrilateral sum to 180° , then
3x + 6x + 72 = 180
9x + 72 = 180 ( subtract 72 from both sides )
9x = 108 ( divide both sides by 9 )
x = 12
Let x = grams of goldfish
the
620-x = grams of roll gold
.
.40x + .09(620-x) = .15(620)
.40x + 55.8 - .09x = 93
.40x + 55.8 - .09x = 93
.31x + 55.8 = 93
.31x = 37.2
x = 120 grams of goldfish
.
roll gold:
620-x = 620-120 = 500 grams of roll gold
Answer: c
Step-by-step explanation:
It would take them a half and hour
The answer is 6 when you solve the problem.
