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liraira [26]
3 years ago
5

Seven less than three-fifths times a number is less than or equal to eighteen. Which inequality BEST represents this situation?

Mathematics
2 answers:
Sauron [17]3 years ago
7 0

Answer

Step-by-step explanation:

denis-greek [22]3 years ago
5 0
( \frac{3}{5} )*x - 7\leq 18
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The table shows information about the numbers of hours 30 children spent on their tablets one evening. a) find the class interva
Bogdan [553]

Answer:

a) 20<h≤30.

b) 26.17 hrs

Step-by-step explanation:

The missing table is shown in attachment.

Part a)

We need to find the class interval that contains the median.

The total frequency is

\sum \: f = 30

The median class corresponds to half

\frac{1}{2}  \sum \: f ^{th}  -  -  - value

That is the 15th value.

We start adding the frequency from the top obtain the least cumulative frequency greater or equal to 15.

2+8+9=19

This corresponds to the class interval 20<h≤30.

Adding from the bottom also gives the same result.

Therefore the median class is 20<h≤30.

b) Since this is a grouped data we use the midpoint to represent the class.

The median is given by :

\frac{\sum \: fx}{ \sum\: f}

=  \frac{5 \times 3 + 15\times 8 + 25 \times 9 + 35 \times 7 + 45 \times 4}{30}

=  \frac{785}{30}

= 26.17

8 0
3 years ago
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Solve the system of equations by graphing.
valentinak56 [21]
The answer is A.

The way you know this is by graphing the first function.

The second function is in a different format, so you just have to isolate Y. 

-1/3x + y = -1
y= 1/3x -1  OR y= -1 + 1/3x

both of the functions have the same slope, but different y-intercepts. therefore, they'll never touch. making them infinite solutions.

it's also A because both of the slopes are positive, the slopes in graph D are negative.

So, the answer is A.

Hope this helps! xx


4 0
3 years ago
What is 3123532488697 x 5676576876896786
horrorfan [7]
The answer to ur question is 1.77309723E28.
Hope this helps and can i get brainliest answer.
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Is 3b-9 a algebraic expression​
Slav-nsk [51]

Answer:

yes

Step-by-step explanation:

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Complete the point slope equation of the line through (-5,7) and (-4,0)<br><br>y-7=
deff fn [24]
Point slope form: y-7= -7(x+5)
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3 years ago
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