What is the fancy name (symbol) for the ratio of c/d?
1 answer:
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Answer:
The way a proportion is set is as follows;
The Distance from Rio de Janeiro and San Jose Costa Rica is then found as 800 miles
Step-by-step explanation:
The dimension of the distance between Rio de Janeiro and San Jose Costa Rica = 4 inches
The map scale = 1 inch to 200 miles
To figure out how many miles it is or the actual distance from Rio de Janeiro and San Jose Costa Rica, we have;
Therefore, we have;
(4 inches × 200 miles)/(1 inche) = Distance from Rio de Janeiro and San Jose Costa Rica
Which gives;
Distance from Rio de Janeiro and San Jose Costa Rica = 800 miles.
You can just put the 10 over 1 and multiply across. Then simplify! Hope this helps (:
Answer:
C
Step-by-step explanation:
Given
+
← factor the denominator of first fraction
= +
Multiply the numerator/ denominator of second fraction by (x + 2)
= +
The denominators are now common, so add the numerators leaving the denominator, that is
=
= → with numerator 4x + 6 → C