Problem
Each member of a research group visited either the Virgin Islands or Hawaii...
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So What?
Math questions involving two equations and two unknowns can usually be combined into one equation with one unknown.
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SAT: Grid-In Question #1 |
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Question:
| If |
3 |
a |
- |
2 |
= |
10 |
, what is the value of |
6 |
a |
- |
2 |
? |
| First solve the given equation for |
a |
. You have |
3 |
a |
- |
2 |
= |
10 |
, and |
| adding 2 to both sides gives you |
3 |
a |
= |
12 |
, so |
a |
= |
4 |
. Now |
| substitute the value for |
a |
into the expression |
6 |
a |
- |
2 |
. This yields: |
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