maddiemccarter3892
24.09.2019 •
Mathematics
What is the converse of the statement below?
if a quadrilateral has four right angles,
then it is a rectangle.
a.
if a quadrilateral does not have four right angles,
then it is not a rectangle.
b.
if a quadrilateral is not a rectangle,
then it does not have four right angles.
c. if a quadrilateral is a rectangle,
then it does not have four right angles.
d.
if a quadrilateral is a rectangle,
then it has four right angles.
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Ответ:
(L + 10)/(L + 16) = 0.8
Step-by-step explanation:
She needs to answer L more questions to get a grade of 80%.
When she answers L more questions correctly, she will have answered L + 10 questions correctly.
The total number of questions will be L + 16.
L + 10 must be 80% of L + 16
(L + 10)/(L + 16) = 0.8