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Brut [27]
3 years ago
13

15 POINTS FOR AN EASY QUESTION!!!

Mathematics
2 answers:
Rainbow [258]3 years ago
7 0
Your answer is C. 6.5!
If you need steps just tell me!
Hope this helped!
:)
larisa [96]3 years ago
7 0
Since this list is already in order, it is quite easy to find.
The two middle numbers are 4 and 6.
We have to average them.
4 + 6 = 10
10 divided by 2 = 5. So your median is 5. Hope it helps! :)
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Find the sum of each set of numbers, as well as the size n of each set of numbers (n = number of numbers in the set). Use these
guapka [62]

We have to add numbers without a calculator.

1) 25, 35, 19, 31

We can group them by the last digit, so they are easy to add:

25 + 35 = 20 + 30 + 5 +5 = 50 + 10 = 60

19 + 31 = 10 + 30 + 9 +1 = 40 + 10 = 50

Then, 60 + 50 = 110

numbers in the set n = 4

Sum = 110

2) 101, 73, 49, 27, 24, 36

We can group them again by the last digit (adding 10, like the previous example).

We can substract the last digit from one number and add it to the other one. The result will be the same, but they will become easier to add.

101 + 49 = 100+50 = 150

73 + 27 = 70 + 30 = 100

24 + 36 = 20 + 40 = 60

150 + 100 + 60 = 250 + 60 = 310

numbers in the set n = 6

Sum = 310

3) 25, 25, 25, 30, 30, 30, 32, 32, 32

In this case we have 3 times the same numbers, so we can add the three different numbers and then multiply the total by 3.

We can use the properties of the multiplication to simplify the product (we will use the distributive property)

25 + 30 + 32 = 27 + 30 + 30 = 87

87 * 3 = 80*3 + 7*3 = 240 + 21 = 261

numbers in the set n = 9

Sum = 261

8 0
1 year ago
The fifth grade teachers took their classes on a field trip to museum first group had 25 students and two teachers and cost $97.
iren [92.7K]

Answer:


Step-by-step explanation:

S=student cost; T=teacher cost

.

32S+3T=$127 . Multiply this by 2.

64S+6T=$254 Subtract this below

.

25S+2T=$97.50 . Multiply this by 3.

75S+6T=$292.50

64S+6T=$254 . Subtract this (from above.)

.

11S=$38.50

S=$3.50

ANSWER 1: Student tickets cost $3.50.


.

32S+3T=$127

32($3.50)+3T=$127

$112+3T=$127

3T=$15

T=$5.00

ANSWER 2: Teacher tickets cost $5.00.

.

CHECK:

25S+2T=$97.50

25($3.50)+2($5.00)=$97.50

$87.50+$10.00=$97.50

$97.50=$97.50


4 0
3 years ago
What is the stander form of 1234567456
stealth61 [152]

Answer:

Hi sky how u doing? Me and grant already solved our problems. I need to talk to you :) PLZ RESPOND FAST!!

3 0
3 years ago
What is the volume of the water in the container when it is 2/3-full? Measuring 23 cm by 10 cm by 6 cm
topjm [15]

Answer:

2/3 full = 23 × 10 × 6 × \frac{2}{3}

            = 920 cm^3

8 0
2 years ago
Help is needed :) not sure what to do?
myrzilka [38]
The answer to the question is d
8 0
3 years ago
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