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3 years ago

The first number is 3 times 3rd number and second number is 2 times the first and equals 12

Mathematics

1 answer:

solong [7]3 years ago

8 0

Answer:

the first number is 6 the second number is 2 the third number is 2

Step-by-step explanation:

take 12 divided by 2 and u get 6 witch is the first number then u also get the second number witch is 2 then u take 6 divided by 3 and u get the third number witch is 2

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Leo's bank balances at the end of months 1, 2, and 3 are $1500, $1530, and $1560.60,

grandymaker [24]

Leo's balance after 9 months will be: $1757.49

Step-by-step explanation:

It is given that the balances follow a geometric sequence

First of all, we have to find the common ratio

Here

$a_1 = 1500\\a_2 = 1530\\a_3 = 1560.60$

Common ratio is:

$r = \frac{a_2}{a_1} = \frac{1530}{1500} = 1.02\\r = \frac{a_3}{a_2} = \frac{1560.60}{1530} = 1.02$

So r = 1.02

The general form for geometric sequence is:

$a_n = a_1r^{n-1}$

Putting the first term and r

$a_n = 1500 . (1.02)^{n-1}$

To find the 9th month's balance

Putting n=9

$a_9 = 1500 . (1.02)^{9-1}\\= 1500.(1.02)^8\\=1757.4890$

Rounding off to nearest hundredth

$1757.49

Hence,

Leo's balance after 9 months will be: $1757.49

Keywords: Geometric sequence, balance

Learn more about geometric sequence at:

#LearnwithBrainly

5 0

3 years ago

Help pls 6th grade math

vladimir1956 [14]

Answer:

x> or equal to 35. 36 is a solution.

Step-by-step explanation:

3 0

2 years ago

1. How many solitions does this equation have -4(5-3x)=12x+20

Rom4ik [11]

Answer:

1. no solutions

2. one solution

Step-by-step explanation:

1. -4(5-3x)=12x+20

-20+12x=12x+20

-40+12x=12x

-40=0?????

So no solutions.

2. 3x+7(x+1)=2(6x+5)+2

3x+7x+7=12x+10+2

10x+7=12x+12

-2x+7=12

-2x=5

x=-5/2

So one solution.

6 0

3 years ago

Read 2 more answers

An overhead projector enlarges the image on its glass by a scale factor of 4. A rectangle that is 3 inches wide and 7 inches lon

qwelly [4]

Just multiply the with and the length by four (considering the scale factor is 4)
3x4=12 and 7x4=28

6 0

3 years ago

Write two ratios that are equivalent to 3/11

julsineya [31]

The answer is 3:11 and 3 to 11

5 0

3 years ago