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natulia [17]
3 years ago
5

Sixteen high school students completed a math exam, but only 12 students received a passing grade. Which expression represents t

he ratio of passing grades to failing grades?
Mathematics
2 answers:
nydimaria [60]3 years ago
6 0

Answer:

4:3 that's the answer

for the question

vampirchik [111]3 years ago
4 0

Answer:

4:3 is the correct answer

Step-by-step explanation:

The total students that took the exam is 16 but the students that passed are only 12 the ratio that represent it is remember ratio means division so is 16/12 which one / 4 will give you for over 3 as a correct answer

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A person's height is 5-ft 3-in. Their shadow has a length of 3-ft 6-in. If a nearby tree has a shadow of length 10-ft 4-in, what
Alchen [17]

Answer: The height of tree = 15 ft. 6 inches

Step-by-step explanation:

Given: A person's height is 5-ft 3-in = [5 x (12 )+3 ]  inches    [ 1 ft= 12 inches]

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Their shadow has a length of 3-ft 6-in = [3 x 12+6] inches    

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If a nearby tree has a shadow of length 10-ft 4-in = [10 x 12+4] inches

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At the same time,

\dfrac{\text{Height of tree}}{\text{Height of person}}=\dfrac{\text{Length person's shadow}}{\text{Length of tree's shadow}}\\\\\dfrac{\text{Height of tree}}{63}=\dfrac{124}{42}\\\\\Rightarrow\ \text{Height of tree}=\dfrac{124}{42}\times63=186\ inches\\\\=\dfrac{186}{12}= 15.5 ft\ or\ 15 ft.\ 6\ inches.

Hence, the height of tree = 15 ft. 6 inches

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scZoUnD [109]

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