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diamong [38]
3 years ago
6

John opens a saving account and by the end of the first month he has $300 in the account. By the end of a 12-month time span, Jo

hn has $1500 in his savings account. What is the average rate in dollars per month in Johns savings account?
Mathematics
1 answer:
Annette [7]3 years ago
8 0

Answer:

$300

Step-by-step explanation:

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<img src="https://tex.z-dn.net/?f=%28%20%5Cfrac%7B1%7D%7B2%7D%20%20%7Ba%7D%5E%7B2%7D%20%20%2B%20%20%20%5Cfrac%7B1%7D%7B2%7D%20ab
Zigmanuir [339]

Answer:

\frac{1}{2} (a + 2b)(a - b)

Step-by-step explanation:

Assuming you require the expression to be factored

Given

\frac{1}{2} a² + \frac{1}{2} ab - b² ← factor out \frac{1}{2} from each term

= \frac{1}{2} (a² + ab - 2b²) ← factor the quadratic

Consider the factors of the coefficient of the b² term(- 2) which sum to give the coefficient of the ab- term (+ 1)

The factors are + 2 and - 1, since

2 × - 1 = - 2 and 2 - 1 = + 1, thus

a² + ab - 2b² = (a + 2b)(a - b) and

\frac{1}{2} a² + \frac{1}{2} ab - b² = \frac{1}{2}(a + 2b)(a - b)

5 0
3 years ago
Please help with algebra, due soon. Worth good amount of points. I'll give thanks and brainliest too.
sleet_krkn [62]
Use s o c r a t I c m a t h p a p a
5 0
3 years ago
Read 2 more answers
Please answer this correctly
jolli1 [7]

Answer:

No, because there is just as high of a possibility that the other is biased too.

8 0
3 years ago
Help me solve 1 &lt;2n-5 &lt;_7 also please explain
Naddik [55]
I'm not sure if that is supposed to be 7 or -7 If it's -7: 1<2n-5<-7 +5 +5 +5 Add 5 to all parts of the inequality get 2n by itself 6<2n<-2 /2 /2 /2 Divide all parts by 2 to isolate the variable 3
7 0
3 years ago
Your grandma lives 300 miles away. To go to her house, your average is 60 miles per hour(60mph). On the way home, you travel a b
Kobotan [32]
55mph, (60 + 50) divided by 2 = 55.
3 0
3 years ago
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