Mathematics, 24.01.2020 19:31, kyrabrown33
Equations cannot always be solved in one step. sometimes you must perform several operations before you can solve for the variable. you must try to isolate the variable on one side of the equation (usually the left).
example:
2x + 4 = 12 first, subtract 4 from each side
2x = 8
then divide each side by 2
x = 4
the solution (answer) is 4
example:
1/3s - 6 = 18
first, add 6 to each side
1/3s = 24
then, multiply each side by 3 (inverse of 1/3)
s = 72
the solution (answer) is 72
visit the following websites for more information, examples and practice on this concept.
lesson review
directions: solve each of the following equations.
1. 2x - 12 = 6
2. 2x + 6= 8
3. 12s - 12=12
4. 14s + 6 = 35
5. 3s - 12 = 6
6. 18t + 9 = 34
7. 21x + 7 = 28
8. 50y + 5 = 105
9. 1/4x - 6 = 24
10. 13x + 2 = 18
11. 6 - 3x = 18
12. 14 + s = 21
13. 16x - 4 = 28
14. 19x - 1 + 3 = 40
15. 10t = 194
16. 400x + 100 = 1100
17. 40 - 3x + 3 = 113
write your answer below:
(i would really appreciate it if someone me with these problems. you!
Answers: 3
Mathematics, 21.06.2019 19:20, girlydiy17
Thompson and thompson is a steel bolts manufacturing company. their current steel bolts have a mean diameter of 127 millimeters, and a variance of 36. if a random sample of 35 steel bolts is selected, what is the probability that the sample mean would differ from the population mean by greater than 0.5 millimeters? round your answer to four decimal places.
Answers: 3
Mathematics, 21.06.2019 19:30, alanaruth3389
Consider a cube that has sides of length l. now consider putting the largest sphere you can inside this cube without any point on the sphere lying outside of the cube. the volume ratio -volume of the sphere/ volume of the cube is 1. 5.2 × 10−1 2. 3.8 × 10−1 3. 1.9 4. 2.5 × 10−1 5. 3.8
Answers: 2
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