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Serga [27]
3 years ago
11

Ten less than 3 times a numbers is the same as the number plus 4 please help

Mathematics
1 answer:
Dmitry_Shevchenko [17]3 years ago
6 0

7 is the correct answer! :-)

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Find the sum of the first 7 terms of the following series, to the nearest integer. 150,60,24...
Sonja [21]

A geometric series is the collection of an unlimited number of terms with a fixed ratio between them. The sum of the first seven terms of the series is 249.

<h3>What is geometrical series?</h3>

A geometric series is the collection of an unlimited number of terms with a fixed ratio between them.

The given series is an geometric series, the details of the series are:

a₁ = 150

r = 60/150 = 0.4

n = 7

The sum of the geometric series is,

S = 150(1-0.4⁶)/(1-0.4)

S = 248.976 ≈ 249

Hence, the sum of the first seven terms of the series is 249.

Learn more about Geometrical Series:

brainly.com/question/4617980

#SPJ1

4 0
2 years ago
Read 2 more answers
What is the value of x in log2 (x)-3=1?
Gre4nikov [31]
X=4/log(2) Hope this helps!
4 0
3 years ago
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Given that 2 x − 9 y = 22
aivan3 [116]

Answer:

y = -8/9

Step-by-step explanation:

2 ×(7) - 9 y = 22

14 - 9y = 22

9 y = -8

y = -8/9

3 0
3 years ago
Factor the trinomial: 4x2 - 8x - 5
shtirl [24]
Correct answer is A.

(2x + 1)(2x - 5)&#10;\\2x(2x-5)+1(2x-5)&#10;\\4x^2-10x+2x-5&#10;\\4x^2-x-5
6 0
3 years ago
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Jeremiah currently has an account balance of $1624.35. His initial deposit on the account was $975 and it earned 3.7% simple int
Naya [18.7K]

Current Account Balance = $1,624.35

Initial Deposit = $975

Interest Rate (Simple) = 3.7% simple interest

Interest Earned = Current Account Balance - Initial Deposit

⇒ Interest Earned = $1,624.35 - $975

⇒ Interest Earned = $649.35

Now the Formula for Simple Interest is:

Simple Interest = ×\frac{\text{P x R x T}}{100}, where P is the initial deposit, R is the rate of interest and T is the time period

⇒ 649.35 = \frac{\text{975 x 3.7 x T}}{100}

⇒ T = \frac{\text{649.35 x 100}}{\text{975 x 3.7}}

⇒ T = 18

Hence, Jeremiah has had the account for 18 years.

6 0
3 years ago
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