Simplified: -23x+71
15-8(3x-7)+x
distribute
15-24x+56+x
combine like terms
-23x + 71
1. Set up the long addition.
2 4 7
+3 5 8
_______
2. Calculate 7+8, which is 15.
since 15 is two-digit, we carry the first digit 1 to the next column.
1
2 4 7
+ 3 5 8
________
5
3. Calculate 4+5, which is 9. Now add the carry digit of 1, which is 10. Since 10 is two-digit, we carry the first digit 1 to the next column.
1 1
2 4 7
+ 3 5 8
________
0 5
4. Calculate 2+3, which is 5. Now add the carry digit of 1, which is 6.
1 1
2 4 7
+3 5 8
______
6 0 5
5. Therefore, 247 + 358 = 605.
605
Answer:
what do you need
Step-by-step explanation:
Energy from 1 bottle last 7.5 min
1 glass cost = 2.5 $
Since it cost 5$ for 1 kg and the bottle weight 1/2 kg
6*60 =360 min ( is in 6 hours)
2.5/? =7.5/360
? = 120 $
Answer:
1 - 12
2 - 22
3 - 12
4 - waterslide
5 - 3
6 - 36%
7 - 9/28
8 - 8/22 or 4/11
9 - 6/25
10 - 50
Step-by-step explanation:
1 - 28-8-7=12
2 - 3+8+11=22
3 - 9+3=12
4 the total at the water activities was 20 while the total at the picnic was 18
20 is greater than 18 therefore the waterslide was favored
5 - 12 - 9 = 3
6 -(100/50)18=36
