Solve -7x = 21 X = please help ASAP
2 answers:
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Answer:
1.925mg of levonorgestrel and 0.68mg of ethinyl estradiol are taken during the 28-day period.
Step-by-step explanation:
The total milligrams of levonorgestrel is:
In which and
are the number of miligrams of levonorgestrel taken in each phase.
The total milligrams of ethinyl estradiol is:
In which and
are the number of miligrams of ethinyl estradiol taken in each phase.
We can solve this by phase.
Phase 1: 6 tablets, each containing 0.050 mg of levonorgestrel and 0.030 mg ethinyl estradiol
In this phase,
of levonorgestrel and
of ethinyl estradiol are taken.
So and
Phase 2: 5 tablets, each containing 0.075 mg of levonorgestrel and 0.040 mg ethinyl estradiol
In this phase,
of levonorgestrel and
of ethinyl estradiol are taken.
So and
Phase 3: 10 tablets, each containing 0.125 mg of levonorgestrel and 0.030 mg ethinyl estradiol
In this phase,
of levonorgestrel and
of ethinyl estradiol are taken.
So and
The total milligrams of levonorgestrel is:
The total milligrams of ethinyl estradiol is:
1.925mg of levonorgestrel and 0.68mg of ethinyl estradiol are taken during the 28-day period.
Answer:
• subtract eqn(b) from eqn(a);
• find x :