Answer:
0 ≤x
Step-by-step explanation:
9x-3 ≤11x-3
Subtract 9x from each side
9x-9x-3 ≤11x-9x-3
-3 ≤2x-3
Add 3 to each side
-3+3 ≤2x
0 ≤2x
Divide by 2
0/2 ≤2x/2
0 ≤x
The two numbers are very near 7200 and 300. The sum of those is a good estimate of your sum:
... 7200 + 300 = 7500
_____
If you're taught methods of addition that include "make a ten" or "make a hundred", you know you can "borrow" a 1 from 7203 (making it 7202) and loan that 1 to 299 to make it 300. Now, you know your sum is exactly 7202+300 = 7502, with no estimation necessary.
X-intercept: 3
y-intercept: -10
Answer:
A) 8x - 4 || B) 6x + 29
Step-by-step explanation:
A) -2x + 5 + 10x - 9
→ -2x+10x+5-9
→ -2x+10x-4
→ 8x - 4
B) 3(x + 7) + 2(-x + 4) + 5x
→ 3x + 21 - 2x + 8 + 5x
→ 6x + 29
Answer:
BD is just equal to the sum of BC and CD.
So we have: BD = x + x + 5
Simplifying, we have BD = 2x+5
Let me know if this helps!