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Blizzard [7]
3 years ago
15

Please help, I keep getting bots. Using front-end estimation, find a reasonable estimate of:

Mathematics
2 answers:
Aleks [24]3 years ago
5 0

Answer:

Roughly 18,000

Step-by-step explanation:

When you need to do rough mental math, you can do something like 720 vs 25 or 30 which is pretty simple to do in your head.

If you are very proficient in mental math, you can do something like 720 * 25, which is harder, but if you know the tricks, you can do this quickly.

720 * 25

Multiply 25 by 7.

175

Add two zeros.

17,500

Multiply 25 by 2

50

Add a zero.

500.

17500 + 500 = 18000

cestrela7 [59]3 years ago
4 0

Answer: 18,694

Step-by-step explanation:

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7 + k/3= 18 please help me answer this question it’s due tomorrow
Eddi Din [679]

Answer:

k = 33

Step-by-step explanation:

7 + k/3 = 18

=>7 + k/3 -7 = 18 - 7

=>k/3 = 11

=>(k/3) * 3 = 11 * 3

=>k = 33

8 0
3 years ago
Read 2 more answers
HELP ME PLEASE!!!!!!
makvit [3.9K]
A) (0,0) and (3,1)

1-0 divided by 3-0

Slope is 1/3

the slope represents the relationship between x and y

b) (6,2) and (-3,-1)

-1-2 divided by -3-6

Slope is 1/3

c) yes, the two triangles represent the same slope as all of the four points used are collinear (on the same line), making all the slopes equal.
5 0
2 years ago
Janet wanted to understand whether grade level had any relationship to their opinion on extending the school day. She surveyed s
konstantin123 [22]
Grade       In Favor     Opposed     Undecided          Total
9                 4                   2                    8                   14
10               7                  11                   8                    26
11               14                 15                  9                    38
12               11                 5                    10                  26
Total           36                 33                   35                 104

Above is a partial sum chart that will help us in our quest.

P(Grade 9 | opposed)
The probability of Grade 9, given opposed, is the portion of opposed students that are in grade 9. 
Total number opposed: 33
Number opposed in Grade 9: 2
P(Grade 9 | opposed) = 2 / 33 = 0.06

P(opposed | Grade 9)
Total Number Grade 9: 14
Number opposed in Grade 9: 2
P(opposed | Grade 9) = 2 / 14 = 0.14
6 0
3 years ago
Read 2 more answers
Kenji's electricity bill costs $21.56 per month plus $2.46 per kilowatt hour. How many kilowatt hours can he use and keep his bi
Alik [6]

Answer:

Kenjii can use 13.19 kilowatt-hour.

Step-by-step explanation:

Giving the following information:

Kenji's electricity bill costs $21.56 per month plus $2.46 per kilowatt-hour.

<u>First, we will structure the total cost formula:</u>

Total cost= 21.56 + 2.46*x

x= kilowatt-hour

54= 21.56 + 2.46x

32.44= 2.46x

13.19= x

Kenjii can use 13.19 kilowatt-hour.

5 0
3 years ago
Helppp<br> i will mark the crown<br> please do all
scZoUnD [109]

Answer:

Answer is C

Step-by-step explanation:

6 0
2 years ago
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