I don't quite understand the ten strategy, or what EXACTLY you're asking. But, what you can do is when you add a one digit number plus a nine, just change the nine to a ten and subtract one. It is very easy. So, 7+10 equals 17, subtract one and you get 16 which is 7+9. It is always one less than anything plus 10.
ANSWER:
x > - 1
STEP-BY-STEP EXPLANATION:
- 10 < x - 9
x - 9 > - 10
x > - 10 + 9
x > - 1
Answer:
The 5 in the tens place has more value then the 5 in the ones place
Step-by-step explanation:
0.029= 2.9 x 10 power of negative 2
(The Answer is 0) let’s say x is the Number of Aerobics classes
5x=3x
2x=0
X=0
