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Fittoniya [83]
3 years ago
7

A class of 26 students bought a present for their principal. the present cost $111.80, tax included. how much did each student c

ontribute if the class shared the cost equally
Mathematics
1 answer:
makkiz [27]3 years ago
8 0
111.80 / 26 = 4.30.....so each student contributed $ 4.30
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What is the MAD of this numbers?
Stella [2.4K]
We know that
The MAD is <span>the mean absolute deviation of the data

step 1
</span><span>To find the mean absolute deviation of the data, start by finding the mean of the data set.
</span><span>Find the sum of the data values, and divide the sum by the number of data values
</span>sum of the data values=[130+150+190+100+175+120+165+140+180+190]
sum of the data values=1540
number of data=10
Mean=1540/10-----> 154

step 2
<span>Find the absolute value of the difference between each data value and the mean: |data value – mean|.
</span> |130 – 154|=24
 |150 – 154|=4
 |190 – 154|=44
 |100 – 154|=54
 |175 – 154|=21
 |120 – 154|=34
 |165 – 154|=11
 |140 – 154|=14
 |180 – 154|=26
 |190 – 154|=44

step 3
<span>Find the sum of the absolute values of the differences.
</span>=[24+4+44+54+21+34+11+14+26+44]------> 276

step 4
<span>Divide the sum of the absolute values of the differences by the number of data values.
</span>276/10-----> 27.6

the answer is
27.6
5 0
4 years ago
How can I turn this into a graph in Desmos,
velikii [3]

Answer:

in Desmos there should be a plus sign right above the list of your equations on the left side. Click that plus sign and then click "table". then enter your numbers. then your points will be shown on the graph

to turn this into a line long press on the button next "y" on the table you have made, then select "lines"

8 0
4 years ago
Read 2 more answers
hich number line correctly shows –3 – 1.5? A number line going from negative 4.5 to positive 4.5. An arrow goes from 0 to negati
elena-14-01-66 [18.8K]

Answer:

#1

Step-by-step explanation:

#1)-3-1.5

you go 3 units left from zero to get to -3

then, you go 1.5 units to the left of -3,

thus getting to -4.5,

#2) in #2 you went to the right to 3 and 4.5, but dude, it is subtraction, so, it should go the opposite way...wrong

#3) you can't change to order of the things in subtraction like in addition, so #3 is wrong answer of 3

#4) like in # 3, you have to go from 0 to (-3)   3 units to the left first, also you go from -3 to -4.5 1.5 units to the left, not -3 to -1.4 -4.5, which makes no sense, steps shown incorrectly to get any single answer at all

#5) you go from -1.5 to 1.5 , then from 0 to -1.5, same as in 4, 3, and 2 you will never get to -4.5, but same as 4 not get any single answer at all

3 0
4 years ago
Which are solutions of the equation (x + 5)(x – 3) = 0? Check all that apply.<br><br> x = –15
Natali [406]

Answer:

x= -5 and x= 3

Step-by-step explanation:

You have the factored equation, all you need is to switch the signs on the numbers and that is the answer.

4 0
3 years ago
Read 2 more answers
A. 81. B. 27 C. 108 D. 135
Zanzabum

Answer:

D 135

hope this helps

- a chair with internet

8 0
3 years ago
Read 2 more answers
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