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We are given a system of equations,

This will translate into a 2x2 matrix of coefficients (because 2 equations and 2 unknowns),

The matrix will then be applied to the vector (lower dimensions on top),

And the result vector will be whats on the other side of equals sign,

So to put everything together,

Hope this helps :)
Answer:
Step-by-step explanation:
Another way to express the ratio
XXX
3.5
miles per half-hour
is
XXX
3.5
miles
1
2
hour
3.5
1
2
miles
hour
=
3.5
×
2
1
miles
hour
XXXXXXX
=
7.0
miles
hour
Answer:
8
Step-by-step explanation: