Answer:
3
Step-by-step explanation:
5 (2+3)=25
Answer:
- Andre subtracted 3x from both sides
- Diego subtracted 2x from both sides
Step-by-step explanation:
<u>Andre</u>
Comparing the result of Andre's work with the original, we see that the "3x" term on the right is missing, and the x-term on the left is 3x less than it was. It is clear that Andre subtracted 3x from both sides of the equation.
__
<u>Diego</u>
Comparing the result of Diego's work with the original, we see that the "2x" term on the left is missing, and the x-term on the right is 2x less than it was. It is clear that Diego subtracted 2x from both sides of the equation.
_____
<em>Comment on their work</em>
IMO, Diego has the right idea, as his result leaves the x-term with a positive coefficient. He can add 8 and he's finished, having found that x=14.
Andre can subtract 6 to isolate the variable term, and that will give him -x=-14. This requires another step to get to x=14. Sometimes minus signs get lost, so this would not be my preferred sequence of steps.
As a rule, I like to add the opposite of the variable term with the least (most negative) coefficient. This results in the variable having a positive coefficient, making errors easier to avoid.
Answer:
(D) 3
Step-by-step explanation:
Prudence has 12 pairs of gold earrings and 12 pairs of silver earrings.
Total Number of Earrings =12+12=24
Relative Frequency of Picking a Gold Earrings =12/24= 0.5
If she randomly pulls six pairs of earrings out of the drawer to take with her on a trip
Number of Possible Outcome =Relative Frequency X Number of Trials
=0.5 X 6
=3
She would most likely take 3 gold earrings.
Angle: x
complement: 90-x
3x=90-x-14
4x=76
x = 19
90-x= 71
Step-by-step explanation:
14 For which equation is the solution set {-5,2}?. 15 Which equation has the same solutions as. 2x. 2 + x - 3 = 0.