The ratio of boys to girls in a class is 5:3. There are 32 students in the class. How many students are boys?
2 answers:
<em> </em><em>So</em><em>,</em><em>the</em><em> </em><em>number</em><em> </em><em>of</em><em> </em><em>boys</em><em> </em><em>is</em><em> </em><em>2</em><em>0</em><em>.</em> <em>Hope</em><em> </em><em>this</em><em> </em><em>will</em><em> </em><em>help</em><em> </em><em>u</em><em>.</em><em>.</em><em>.</em>
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Answer:
y = - 2x + 7
Step-by-step explanation:
The equation of a line in slope- intercept form is
y = mx + c ( m is the slope and c the y- intercept )
Calculate m using the slope formula
m =
with (x₁, y₁ ) = (0, 7 ) and (x₂, y₂ ) = (5, - 3 )
m = =
= - 2
The line crosses the y- axis at (0, 7 ) ⇒ c = 7
y = - 2x + 7 ← equation of line