4y - 5x = 9
x = 4y + 11
We can substitute this value of x in the first equation:
4y - 5(4y+11) = 9
4y - 20y - 55 = 9
16y = -64
y = -4
x = 4y + 11
x = -16 + 11
x = -5
Answer:
Fraction of the original board left =
Step-by-step explanation:
Let the length of the board is = l feet
Marty saws off of a wooden board.
Length of the board left = l -
= feet
He saws off of the remaining board,
Board left =
=
= feet
He finally saws off rd of the remaining board.
Board left =
=
= feet
Fraction of the original board left =
=
Answer:
86% Decrease
Step-by-step explanation:
3.70 times x= 3.20 3.20 divided by 3.70= 0.86
The answer is D. <span>transitive property (algebra lesson)
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