It’s just a change of sign. For example y+-1(x+2) or y-x-2 or y-(x+2) all the same thing
Answer:
6n+2
Step-by-step explanation:
If n represents the number, the product of 6 and the number is the product of 6 and n: 6n.
When a quantity is "increased by 2" it means 2 has been added to it.
6n "increased by 2" is 6n+2
78 - 45 = 33
Since it’s half a number you do
33 x 2 = 66
So the answer is 66
Answer:
<em>~ Jill needs a minimum score of 90% to recieve an average of at least 92% on all her math quizzes ~</em>
Step-by-step explanation:
1. The table shows that her past weeks math quiz scores are: 92, 96, 94, 88
2. If she were to get a mean, or average, of at least 92, we could set up an equation to determine the minimum score she will recieve on her next quiz:
92 + 96 + 94 + 88 + x/ 5 = 92 ⇒ <em>(where x is the minimum score she should recieve on her next quiz to get an average of at least 92%)</em>
3. Now let us solve this equation for x through simple algebra ⇒
92 + 96 + 94 + 88 + x/ 5 = 92 ⇒
370 + x/5 = 92 ⇒
x/5 + 74 = 92 ⇒
x/5 = 18
x = 90
4. <em>Jill needs a minimum score of 90% to recieve an average of at least 92% on all her math quizzes</em>