Select all the expressions that are equivalent to -36x+54y−90.
2 answers:
Answer:
b) -18(2x -3y + 5)
d) 18(-2x + 3y - 5)
e) -2(18x - 27y + 45)
Step-by-step explanation:
a) -9( 4x - 6y - 10) = -36x + 54y + 90 not equal
b) -18(2x - 3y + 5) = -36x + 54y - 90 equal
c) -6(6x + 9y - 15) = -36x - 54y + 90 not equal
d) 18(-2x + 3y - 5) = -36x + 54y - 90 equal
e) -2(18x - 27y + 45) = -36x + 54y - 90 equal
f) 2(-18x + 54y - 90) = -36x + 108y - 180 not equal
Answer:
A. -9(4x-6y-10). B. -18(2x-3y+5)
=-36x+54y+90. = -36x+54y-90
=18xy+90. =18xy-90
=108xy. =-72xy
C. -6(6x+9y-15)
=-36x-54+90
=-90xy +90
=0xy
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Combine like terms:
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Answer:
1 HR ---> 42 km
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