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hichkok12 [17]
3 years ago
13

What is 5-2(4a+1)+3a=13

Mathematics
2 answers:
poizon [28]3 years ago
6 0

Answer:

A= 2

Step-by-step explanation:

Studentka2010 [4]3 years ago
5 0

Step-by-step explanation:

5-2(4a+1)+3a=13

5(4a+1)-2(4a+1)+3a=13

20a+5-8a-2+3a=13

20a-8a+3a+5-2=13

15a-3=13

15a=13+3

a=<u>1</u><u>6</u>

<u> </u><u> </u><u> </u><u> </u>15

hope it helps.

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Eric is comparing the credit scores of his friends. The scores he gathered are found in the table below. 588 838 691 818 846 725
alukav5142 [94]
To solve this, we need to know how to find the mean of a set of data and how to find the median of a set of data.

To find the mean, or often called the average, we should add all of the values up, and then divide it by the number of values.

588+838+691+818+846+725+605+732+750 = 6593
6593/9=732.556

The problem tells us we should round to the nearest point, so our mean credit score is 733.

To find the median, we need to order the data from lowest to highest and find out which credit score(s) are right in the middle. If there are 2 in the middle, we simply should add them and divide by 2 to get our median. An easy way to do this is after you order them, you simply cross off one on each side until there is only 1 (or 2) left.

588 605 691 725 732 750 818 838 846
       605 691 725 732 750 818 838
              691 725 732 750 818
                     725 732 750
                            732

Since we only have one number in the middle, we are done with the median! We know our median is 732.

Now we simply need to compare them and subtract the lower one from the higher one.

Mean:733
Median: 732
733>732

We know the mean is bigger, so we should subtract the median from the mean.

733=732=1

Using the logic above, we can see that the mean is 1 point higher than the median.
8 0
3 years ago
Read 2 more answers
If 590 stufents preferred either pepperoni or cheese, how many students were surveyed in all?i
tatyana61 [14]

Answer:

if the only choices were pepperoni and cheese then 590 students were surveyed. I think there may be more to the question that you left out by accident

3 0
3 years ago
The length of a rectangle is six times its width. If the area of the rectangle is 486 in 2 , find its perimeter.
seraphim [82]

w - width

6w - length

486 in² - area of the rectangle

(w)(6w) = 6w² - area of the rectangle

The equation:

6w² = 486     <em>divide both sides by 6</em>

w² = 81 → w = √81

w = 9 in

l = 6w → l = (6)(9) → l = 54 in

The perimeter: P = 2l + 2w

P = 2(54) + 2(9) = 108 + 18 = 126 in

<h3>Answer: The perimeter is 126in</h3>
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4 years ago
Solve the equation -3/13 - 2/5 =
zavuch27 [327]
The answer is -0.6308
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To graph ( 0, 15 ) what is the only direction you will move
Dominik [7]

Answer:

you will only move 15 units up

Step-by-step explanation:

since the y is the only one that has a value, then you will have to focus more on the direction where the y will go. and since the y's value is positive then you will have to go upwards.

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