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posledela
1 year ago
11

15% of the students in the 6th grade wear glasses. If 12 students wear glasses, how can you determine the number of students in

the 6th grade? Explain your reasoning.
Mathematics
2 answers:
kodGreya [7K]1 year ago
7 0

Answer: There are 80 people in the 6th grade

Step-by-step explanation:

elena-14-01-66 [18.8K]1 year ago
3 0
There are 80 people. This is because you would take 12 and divide it by .15 to find the amount of students.
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An adult short-eared owl weighed 1/2 pound. A baby short-eared owl weighed 2/9 pound. What was the total weight of the two owls?
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Total weight of the two owls are 2/3
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2 years ago
Marta can vacuum the house in 30 min. It takes her daughter 45 min to vacuum the house. How long would it take them if they
Mamont248 [21]

Answer:

<h2>18mins</h2>

Step-by-step explanation:

This problem is on combined work rate

given that

Marta can vacuum the house in 30 min

then her rate= 1/30

Also, her daughter will take 45 min to vacuum the house

her  daughter's rate will be = 1/45

then the combined work rate is

1/30+1/45=1/T

30+45/30*45=1/T

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8 0
2 years ago
What is the solution to the inequality below?
Svetlanka [38]

Answer:

B. x < -8 or x > 8

Step-by-step explanation:

You can use process of elimination to solve this problem by going through every solution and testing them out, but let's jump right to B.

Process:

You know that since the inequality states that x^2 has to be greater than 64, x  has to be more than 8, or less than -8.

This is because 8^2 = 64, and -8^2 = 64, and the inequality requires the answer to be more than 64.

Looking at B., you can see that if x is < -8, the square of, for example, -9, would be 81. This is greater than 64, so this works!

Now, B. also has an alternative. The 'or' is a major clue to which is the correct answer, since the square root of any number can be positive or negative. (-8^2 = 8^2)

The 'or' states that x must be greater than 8. So, for example, if we take the square of 10, we get 100, and that is also greater than 64.

We've proven that this solution is accurate for both parts, so it is definitely the one we want!

Hope this helps!

4 0
3 years ago
Plz help with this question!
Free_Kalibri [48]

Answer: 4 1/6

Step-by-step explanation:

6 0
3 years ago
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