Answer:
451
Step-by-step explanation:
7, 17, 30, 51, 85, 137, 212
Differences between Difference between Difference between
numbers in sequence first differences second differences
17 - 7 = 10
30 - 17 = 13 3
51 - 30 = 21 8 5
85 - 51 = 34 13 5
137 - 85 = 52 18 5
212 - 137 = 75 23 5
75 + 28 = 103
212 + 103 = 315 28 5
103 + 33 = 136
315 + 136 = 451 33 5
Answer: Mom = 33 Son = 11
Step-by-step explanation:
A mother is three times as old as her son
Mom age =3x
AFTER 11 YEARS:
Son’s age =x+11
Mom’s age =3x+11
Also, she will be just twice his age
3x+11 = 2*(x+11)
or,3x+ 11 = 2x +22
or,3x-2x= 22–11
or, x=11
Son’s age = 11 years and mom’s age = 33 years
I would say 2.5 becasue there are two lines between the -2 and -1 so it would be half. SO my awnser is 2.5
i hope this helped you
Have a good day
if it is wrong tell me
30% = 3/10
Number of hours you sleep = 24hours × 3/10
= 24hours ÷ 10 × 3
= 2.4hours × 3
= 7.2hours
Hope this helps! :)
Answer:
Ok thats really cool thanks :)
