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3 years ago

1+4=5; 2+5=12; 3+6=21; 8+11=?

2 answers:

3 0

The pattern:
So it goes, 1, 2, 3, as the first number in each equation right.
Then it goes 4,5,6 as the second number in each equation.
In other words, the first number + 3 = the second number

The sum or 3rd number is a zig zag pattern from the first and second numbers as shown below.
1 2 3 4 5 6 7 8 9
4 5 6 7 8 9 10 11 12

1 * 5 = 5, 2 * 6 = 12, 3 * 7 = 21 .... 8 * 12 = 96

So the answer of 8+11=96

Gnom [1K]3 years ago

3 0

8 + 11 = 40. Because, 8+11= 19 and 19 + 21 is 40.

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Answer:

first account with 6% interest ( x ) = $46000

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Principal = $65000

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assuming ; X = money invested in first account , Y = money invested in second account

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0.04 x + 0.06 y = 3900 + 2600 - 3520

0.04 x + 0.06 y = 2980 ----- ( 1)

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solve equation 1 and 2 simultaneously by elimination method

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subtract equation 3 form equation 4

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therefore y = $65000 - $46000 = $19000

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3 years ago

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3 years ago

What is the value of x?

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3 years ago

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3 years ago

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2 years ago