13+b>34
-13. -13
b>21
hope that's the right answer.
Answer:
B) 1296 D) 729
Step-by-step explanation:
It's pretty straight forward, just put the values into your calculator. The question is asking to evaluate instead of simplifying, so this works. If you don't have a calculator, here are some tricks. Do them step by step in your head slowly if you have to, for fractions do them alone, and then divide them. Also in D, don't let the second value of (3)3)0 scare you, any exponent with a 0 in it is automatically 1! Hope I could help.
Tsk Tsk
<span>Write a justification for Line 2,
Line 3, and Line 4. Explain why you chose each justification.</span>
<span><span>Line
1 5x – 2 = 3x + 7</span>
<span>Line 2
2x – 2 = 7 </span>
<span>Line 3
2x = 9 </span>
<span>Line 4 x = 4.5</span></span>
Answer:
Line 2:
subtraction property (subtract 3x from each side)
Line 3: addition property. (add 2 to each side)
<span>Line 4: division property (divide 2 from each side)</span>
Answer:
x=3
Step-by-step explanation:
Figure ABCD is a rectangle. In rectangles, <u>opposite sides are equal</u>. In the figure, BC and AD are opposite of each other, therefore their side lengths are equal. The side lengths are given: BC=9x-6, and AD=3x+12. Write this as an equation:
- 9x-6=3x+12
- 9x-3x-6=3x-3x+12 (Subtract 3x from each side of the equation)
- 6x-6=12
- 6x-6+6=12+6 (Add 6 to each side of the equation)
- 6x=18
- x=3 (Divide each side by 6)
please let me know if this is wrong, hope it helps :)
31.5 pencils used in 1 hour