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Georgia [21]
3 years ago
9

What is -3x +3y = 15 -2x - 6y = -14​

Mathematics
2 answers:
Katarina [22]3 years ago
6 0

Answer:

Im doing it right now one second

Step-by-step explanation:

bogdanovich [222]3 years ago
4 0

The photo that I took shows the steps that I took to get(4,7) as the answer

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Determine the number of terms, n, given the geometric series 1 3 9 27 ... and sn=3280.
lina2011 [118]

The number of terms, 'n' is 8

<h3 /><h3>How to determine the number of terms</h3>

Let's determine the common ratio;

common ratio, r = 3/1 = 3

The formula for sum of geometric series with 'r' greater than 1 is given as;  Sn = a( r^n - 1) / (r - 1)

n is unknown

Sn = 3280

Substitute the value

3280 = 1 ( 3^n - 1) / 3- 1

3280 = 3^n -1 /2

Cross multiply

3280 × 2 = 3^n - 1

6560 + 1 = 3^n

6561 = 3^n

This could be represented as;

3^8 = 3^n

like coefficient cancels out

n = 8

Thus, the number of terms, 'n' is 8

Learn more about geometric series here:

brainly.com/question/24643676

#SPJ1

5 0
1 year ago
Dr. Gilmore gives Lily 17 pills to take. He told her to take one every six hours. In how many days will she take the last pill?
MArishka [77]
5 days because there are 24 hours in a day so every six hours you can take 4 a day
3 0
3 years ago
Suppose that a rectangular piece of glass has a perimeter of 20 meters. If we multiply both its length and its width by 4, what
goldenfox [79]

Answer:

Answer B is the correct answer

Step-by-step explanation: :)

3 0
3 years ago
The first number is the LCM of 2 ,7 and 10​
kati45 [8]
<h2><em>Answer</em>:</h2>

The least common multiple of 2, 7 and 10 would be <em>70</em>.

8 0
3 years ago
one gallon of milk costs 3.60, but this cost is projected to increase 10% in the next 5 years. what is the projected cost of a g
Tju [1.3M]

3.60$ x (100%+10%)

=3.60$ x 110%

=3.60$ x 1.1

=3.96$ for a gallon of milk 5 years from now.

4 0
3 years ago
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