Let x represent the height of the person and y the weight.
y - 180 = (80 - 180)/(4 - 6) (x - 6)
y - 180 = -100/-2 (x - 6) = 50(x - 6) = 50x - 300
y = 50x - 300 + 180 = 50x - 120
y = 50x - 120
A person 5.5 feet tall will weigh 50(5.5) - 120 = 275 - 120 = 155 pounds.
Answer:
$14.16
Step-by-step explanation:
4.8 × 2.95. =14.16
1. 1/10 (3000) = 3000/10 = 300...so 1/10 of 3000 is 300
300/10 = 30...and 300 is 10 times as much as 30
2. 10 times as much as 8 = (10 x 8) = 80
1/10x = 80
x = 80 * 10 = 800
so 1/10 of 800 is 10 times as much as 8
3. 1/10(50,000) = 50,000/10 = 5000
5000/10 = 500
1/10 of 50,000 is 10 times as much as 500
4. 1/10(40,000) = 40,000/10 = 4,000
4000/10 = 400
1/10 of 40,000 is 10 times as much as 400
5. 1/10 (900) = 900/10 = 90
10x = 90
x = 90/10
x = 9
10 times as much as 9 is 1/10 of 900
6. 1/10 (60,000) = 60,000/10 = 6000
10x = 6000
x = 6000/10
x = 600
10 times as much as 600 is 1/10 of 60,000
7. 70 x 10 = 700
1/10x = 700
x = 700 * 10
x = 7000
10 times as much as 700 is 1/10 of 7000
8. 10 x 2000 = 20,000
1/10x = 20,000
x = 20,000 * 10
x = 200,000
10 times as much as 2000 is 1/10 of 200,000
9. 10 times as much as 2000.....2000 x 10 = 20,000
1/10 of what is 20,000.....1/10x = 20,000....multiply both sides by 10, this eliminates the 1/10 on the left side....resulting in 200,000.
so basically, 10 times as much as 2000 = 20,000 and 1/10 of 200,000 = 20,000
The statement recalls Fibonacci sequence.
In Fibonacci sequence, the first two numbers are 0 and 1, and from there the numbers are the sum of previous two numbers, so the series is:
0, 1, 1, 2, 3, 5, 8, 13, 21, 34, 55 ...
As you see the first two numbers are fixed and the next are calculated witht the rule of the addition of the two previous numbers.
The problem sayt that the since 7 years ago the prices followed the rule of being the sum of the prices of the two years before.
We are in year 7, and know that in year 6 the price was 60c.
So, next year (year 8) the price will be 60 + price in year 7
year 8 = year7 + year6 = year7 + 60
and you can go backward.
year7 = year6 + year 5 = 60 + year5
year6 = year5 + year4 = 60
year5 = year4+year3
year4 = year3 + year2
year3 = year2 + year1
Before that you need to make an assumption.
Was the price before the year 1 constant or they were as per the two first numbers of Fibonacci series, which are 0 and 1?.
We just know how the prices skyrocketed since year 1.
I will make the problem in two ways:
First approach: year 1's price = x and previos year price = 0
year price
1 x
2 x+ 0 = x
3 x+x =2x
4 2x+x = 3x
5 3x+2x = 5x
6 5x+3x =8x
In that year the price is 60 c.
Then, 8x = 60 => x = 60/8 = 7.5 c
=> Price next year = 8x + 5x = 13x = 13(7.5) = 97.5 c
=> Price seven years ago = x = 7.5 c
Second approach: year's 1 price = x and two prices in the two previous years are 0 and 1
year price
1 x
2 x+1
3 2x+1
4 3x+2
5 5x + 3
6 8x + 5
Then 8x + 5 = 60 => 8x = 55 => x = 55/8 = 6.875
=> price next year = 13x + 8 = 13(6.875) + 8 = 97.375
=> price year 1 - 6.875
There is not practical difference between the two assumptions, but the statement should be clear regarding all the information and that include how are the prices before seven years ago to calculate the prices in the two first years of the last seven years.
Answer:
To answer this question you will use the median height of 156 centimeters and the fact that there are 26 kids in the class to know that the median is not in the data set, therefore it breaks the data into two equal halves with 13 in each half.There would be 13 less or equal to the median height.
Step-by-step explanation: