3 years ago

Rename the fraction as a percent:1/2 =

Mathematics

1 answer:

Charra [1.4K]3 years ago

7 0

1/2 = 0.5...to turn to a percent, multiply by 100.
0.5 x 100 = 50%

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2 years ago

Solve it by substitution method:- 5x - 6y=-9 and 3x + 4y= 25

user100 [1]

$\left\{\begin{array}{ccc}-5x-6y=-9&/\cdot2\\3x+4y=25&/\cdot3\end{array}\right\\+\left\{\begin{array}{ccc}-10x-12y=-18\\9x+12y=75\end{array}\right\\------------\\.\ \ \ \ \ \ \ -x=57\\.\ \ \ \ \ \ \ \ \ x=-57\\\\3\cdot(-57)+4y=25\\-171+4y=25\\4y=25+171\\4y=196\ \ \ \ /:4\\y=49\\\\Solution:x=-57;\ y=49.$