If y varies directly as x and y = 3 when x = 24, find y when x = -16
1 answer:
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Answer:
Step-by-step explanation:
1: Write g(t) as y, resulting in
2: Interchange the variables y and t, resulting in
3: Multiply both sides by 27, resulting in
4: Divide both sides by -8, resulting in
5: Find the cube root of both sides, resulting in
6: Apply a radical rule, resulting in
7: Apply another radical rule, resulting in
8: Simplify the denominator, resulting in
9: Apply yet another radical rule, resulting in
10: Simplify , resulting in
Answer:
Step-by-step explanation:
Notice that in the second equation, the coefficient of is
times greater than in the first. Therefore, by making the coefficient of
in the second equation
times greater than in the first, it's impossible to only isolate one variable.
Therefore, when , there are no solutions to this system.