Answer:
1) 15-4x
2) 3x+2
Step-by-step explanation:
1) product of x and 4 is 4x then subtract that from 15
2) use x as your age in this situation so your age times 3 is 3x and since he's 2 years older than that u add 2 more
find the mean, range ,and median of these values 12,4,-2,0,9.-2,1,7,8,2 recall the range is calculated by finding the difference
Lubov Fominskaja [6]
Put numbers in order
-2,-2,0,1,2,4,7,8,9,12
Mean add all the numbers = 39 divide 39 by the number of of numbers on the list which is 10. 39/10 = 3.9
Mean = 3.9
Range is the number of spots between -2 and 12 = 14
Range =14
Median is the middle number in the list there are two middle numbers 2 and 4. Add these together to get 6. Divide 6 by the number 2 because that is how many numbers you had to add. 6/2=3. The is not on the list but it is the average of the two terms.
Median =3
Answer:
a) 675 b) 1050 c) 675 d)455 e) 120
Step-by-step explanation:
Plug into y-y1=m(x-x1). So y+5=2/3(x-1). Simplified this equals y+5 =2/3x-2/3. Which then equals y=2/3x+4 1/3
8.726 is rounded from the nearest whole number because if you subtract 42,900 from 24.4 and then rounded it it would be 8.726
