We can't use SAS to prove these triangles are congruent because they're not proportional to two corresponding sides.
<h3>How to illustrate the information?</h3>
It should be noted that the SAS similarity criterion states that when two sides of one triangle are proportional to two corresponding sides of another, and when the included angles are equal, the two triangles are similar.
In this case, we can't use SAS to prove these triangles are congruent because they're not proportional to two corresponding sides.
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To find the unit rate, divide the numerator and denominator of the given rate by the denominator of the given rate. So in this case, divide the numerator and denominator of 70/5 by 5, to get 14/1, or 14 students per class, which is the unit rate.
To find the unit rate, divide the numerator and denominator of the given rate by the denominator of the given rate. So in this case, divide the numerator and denominator of 70/5 by 5, to get 14/1, or 14 students per class, which is the unit rate.
Set 7x-4 and 31 equal to each other
7X-4=31
Add four to both sides
7X=27
X=3
The answer is D
