A man is now 3 times as old as his son. In 10 years time, the sum of their ages will be 76.
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Answer:
we conclude that in the second step, 3 should have been subtracted from the right side as well on the left side.
Step-by-step explanation:
Given the expression
SECOND STEP
subtract 3 from the right-hand side as well as on the left-hand side
SOLVING THE REMAINING COMPLETE COMPRESSION
Divide all parts by -2
- Please note that multiply or divide an inequality by a negative number flips the inequality sign.
so the expression becomes
Hence, from the explanation, we conclude that in the second step, 3 should have been subtracted from the right side as well on the left side.
The hypotenuse is 6. 30-60-90 triangles have a ration of x, x
, and 2x, respectively. So since you have the value for the 30º side, then you just double it to get the hypotenuse's value.