The answer is x=1 because you add the 3 to the 2
68 is close to 70
38 is close to 40
70 times 40 is the same as 7 times 4 = 28 and add two zeros
2800
Answer:
113.04
Step-by-step explanation:
IM SO SORRY IF ITS WRONG
9514 1404 393
Answer:
- incorrectly; used 1 in the division instead of -1
- incorrectly; evaluated higher powers of -1 incorrectly
Step-by-step explanation:
The result each should have obtained is ...
a +10 = 17
a = 7
Braulio's mistake was in using 1 as his divisor instead of -1. His bottom row should have been 1, 4, a-4, 1-a, a +10.
Zahra's mistake was improperly evaluating higher powers of -1. Her evaluation should have been 1 -5 +a +3 +11 = a +10.