3 years ago

Which ratio forms a proportion with 2/5

Mathematics

1 answer:

Rus_ich [418]3 years ago

8 0

Answer:

Pairs of ratios that form a proportion

A proportion is simply a statement that two ratios are equal. It can be written in two ways: as two equal fractions a/b = c/d; or using a colon, a:b = c:d. The following proportion is read as "twenty is to twenty-five as four is to five."

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Which equation represents a line that intersects the line 2y − 4x = 3? A.-2y + 4x = 1 B. 3y − 6x = 6.5 C. y − 2x = 3 D. -2y − 4x

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Convert all the equations to slope-intercept form:
$2y-4x=3 \ \ \ |+4x \\
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$A. \\
-2y+4x=1 \ \ \ |-4x \\
-2y=-4x+1 \ \ \ |\div (-2) \\
y=2x-\frac{1}{2} \\ \\
B. \\
3y-6x=6.5 \ \ \ |+6x \\
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$C. \\
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Line D has another slope, so it intersects the line 2y-4x=3.
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