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aksik [14]
3 years ago
14

. A coach divided his team into two proups of equal size. 5/8 of the first group drinks at least 2 glasses of water a day. 75% o

f the second group drinks at least 2 glasses of water a day. What fraction of the team drinks at least 2 glasses of water a day?
a 1/2
b 5/8
c 11/6
d 3/4

​
Mathematics
1 answer:
____ [38]3 years ago
6 0

Answer:

b is the answer of the question because it is the only answer

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If 2x = 60, find the value of 6 - 7x
vodka [1.7K]

Answer:

- 204

Step-by-step explanation:

2x = 60

x = 30

6 - 7(30) = -204

3 0
3 years ago
Read 2 more answers
In a class in which the final course grade depends entirely on the average of four equally weighted 100-point tests, Joyce has s
d1i1m1o1n [39]

Answer:

66 ≤ f ≤100

Explanation

Mean= ( Σ x ) / n

Mean= sum of scores/ number of subject she took

Now, she already too 3 subject which sum is 85+83+86=254

Now we need to know range of score for her to have (grade) a mark between 80 and 89

Now let take the lower limit mean=80

The lowest score she can get is

Mean = ( Σx) / n

80=(85+83+86+f)/4

80×4= 254+f

Therefore, f= 320-254=66

Therefore the minimum score she can have to have a B is 66.

Then, let take the upper limit mean 89. i.e the maximum she can have so that she don't have an A grade.

Mean = ( Σx) / n

89=( 83+85+86+f)/4

89×4= 254+f

f= 356-254

f=102.

Therefore this shows that she cannot have an A grade in the exam. The maximum score for the exam is 100.

There the range of score is 66 ≤ f ≤100 to have a B grade

66 ≤ f ≤100 answer

Since she cannot score 102 in the examination.

8 0
3 years ago
The number of eggs e in the carton and the total costs t of the eggs. what is the dependent variable
just olya [345]
T because you need to know the number of eggs, e, to know how much it costs.
6 0
3 years ago
Solve for z: 11=6|-2z| -5
skad [1K]

Answer:

the roots are {-4/3, 4/3}

Step-by-step explanation:

Begin the solution of 11=6|-2z| -5 by adding 5 to both sides:

11=6|-2z| -5 becomes 16 = 6|-2z|.

Dividing both sides by 12 yields

16/12 = |-z|

There are two cases here:  first, that one in which z is positive and second the one in which z is negative.

If z is positive, 4/3 = -z, and so z = -4/3, and:

If z is negative, 4/3 = z

Thus the roots are {-4/3, 4/3}

3 0
3 years ago
Can someone please help me I’m stuck I don’t know
Leviafan [203]

Answer:

140

Step-by-step explanation:

Because the lines are parallel:

\dfrac{DE}{35}=\dfrac{60}{15} \\\\DE=4\cdot 35=140

Hope this helps!

4 0
3 years ago
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