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GenaCL600 [577]
2 years ago
13

Find the sum or difference. 1 3/10 + 2 2/5

Mathematics
2 answers:
pychu [463]2 years ago
8 0
The answer is 3 7/10
Dafna1 [17]2 years ago
5 0

Answer:

turn into top heavy fractions to start off.

whole number X denominator plus numerator

1 X 10 + 3= 13/10

2 X 5 + 2 = 12/5

now need to find a common denominator we can use 10.

5 X 2 = 10 what you do to the bottom you must do to the top.

12 X 2 = 24

the sum should now read

13/10 + 24/10 = 37/10.

to turn back into mixed number work out how many denominators go into numerator.

in this case 3. whatever is left over becomes the numerator. end answer 3 7/10

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Step-by-step explanation:

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2 years ago
Find the first five terms of the recursive sequence <br> an=-6an-1 where a1=4.5
grandymaker [24]

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Step-by-step explanation:

The given recursive definition is,

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This will form a geometric sequence with first term 4.5 and common ratio r=-6.

When n=2, we have:

a_2=-6a_1 \\  \implies \: a_2=-6 \times 4.5 =  - 27

When n=3, we get:

a_3=-6a_2 \\  \implies \: a_3=-6 \times  - 27 =  162

When n=4, we get:

a_4=-6a_3 \\  \implies \: a_4=-6 \times 162 =  - 972

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a_5=-6a_4 \\  \implies \: a_5=-6 \times  - 972 = 5832

Therefore the first five terms are:

4.5, -27, 162,-972, 5832

3 0
3 years ago
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