What is the best description of a quadrilateral with four right angles?
1 answer:
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Jenna has $43 and Heidi has $17.
Step-by-step explanation:
Total amount = $60
Let,
Amount of Jenna = x
Amount of Heidi = y
According to given statement;
x+y=60 Eqn 1
x=2y+9 Eqn 2
Putting value of Eqn 2 in Eqn 1;
Dividing both sides by 3,
Putting y=17 in Eqn 2
Jenna has $43 and Heidi has $17.
Keywords: linear equations, substitution method
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ANSWER
The correct answers are option B and D.
EXPLANATION
The given expression is
We need to simplify the above expression in order to determine the option that is equivalent to it.
The least common denominator for the last two fractions is 3.
This implies that,
We simplify to obtain,
This further simplifies to give us,
This is option B.
When we further factor -4, we get,
This is option D.
The correct answers are option B and D.
EXPLANATION
The given expression is
We need to simplify the above expression in order to determine the option that is equivalent to it.
The least common denominator for the last two fractions is 3.
This implies that,
We simplify to obtain,
This further simplifies to give us,
This is option B.
When we further factor -4, we get,
This is option D.