chloegirl7994
14.06.2020 •
Mathematics
Stephanie has $45,000. Part or all of which she wants to invest into a combination of municipal bonds and corporate bonds. She wants to invest no less than $20,000 into municipal bonds, and at least four times as much into municipal bonds than into corporate bonds. Let x be the amount invested in municipal bonds, and let y be the amount invested in corporate bonds Which system of inequalities describes Stephanie's investment options?
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Ответ:
Step-by-step explanation:
Let x be the amount invested in municipal bonds, and let y be the amount invested in corporate bonds.
If Stephanie has $45,000 and she wants to invest part or all into a combination of municipal bonds and corporate bonds, the inequality for this statement would be
x + y ≤ 45000
She wants to invest no less than $20,000 into municipal bonds. It means that
x ≥ 20000
Also, she wants to invest at least four times as much into municipal bonds than into corporate bonds. This means that
x ≥ 4y
x/4 ≥ y
y ≤ x/4
The inequalities are
x + y ≤ 45000
x ≥ 20000
y ≤ x/4
Ответ:
square area=side length²
side length = 1/5