Answer:
a) 270000
b) 2000000
c) 24000000
Step-by-step explanation:
For a)
346 to 1 s.f is 300
904 to 1 s.f is 900
300 × 900 = 270000
For b)
2451 to 1 s.f is 2000
988 to 1 s.f is 1000
2000 × 1000 = 2000000
For c)
3204 to 1 s.f is 3000
7756 to 1 s.f is 8000
3000 × 8000 = 24000000
Hope this helped and have a good day
7a- true
7b- false
7c- true
How about raising 286 up by 14 to 300 and compensating by lowering 428 by the same 14 Since I know that 14 + 14 is 28 then 28-14 is 14
So 428 - 14 = 414
So now I have 414 + 300 which I can do mentally - the answer is 714 and is also the answer to the original problem 428 + 286
Compensation works very well - bring one number up or down to a rounded number and compensate by doing the opposite to the other - instead of 199 + 457 - try 200 + 456
Same answer and because one of the numbers is nicely rounded, it is easy to add the other.
One more: 207 + 182 becomes 200 + 189 =389 I lowered one by 7 and raised the other one by the same 7.
It would take three turns.....
The easiest way would probably just writing down each of the scores for the turns:
(Also, the reason why 100 isn't included is because they only have 100 points before the end of the first turn)
Katie- 200, 400, 800
Jenn- 300, 500, 700
Doing an equation is most of the time the easiest way for problems like this, but in this situation it would be pretty much pointless. Since they have an equal amount of points before the end of the first turn, hence you'll get zero.
*also you misspelled "both"
Answer:
Evaluate:
- -
Factor:
Step-by-step explanation: