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pshichka [43]
3 years ago
6

Which is the larger amount 4/10 of a dollar or 8/10 of a dollar

Mathematics
2 answers:
3241004551 [841]3 years ago
7 0
8/10 of a dollar is the correct answer

allochka39001 [22]3 years ago
7 0
8/10 is larger, we can look at it two ways:
4/10 of a dollar is 40 cents, and 8/10 of a dollar is 80 cents, so we know 8/10 is larger; or:
8/10 would be the bigger fraction, so 8/10 of a dollar is larger.
---
Hope this helps!
==jding713==
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Kryger [21]

Answer: 7

Step-by-step explanation:

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3 years ago
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18 is 4.5 times a number.
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4

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4 0
2 years ago
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An arithmetic sequence is defined by the general term tn = -5 + (n - 1)78, where n ∈N and n ≥ 1. What is the recursive formula o
Gnoma [55]

Answer:

C

Step-by-step explanation:

In general for arithmetic sequences, recursive formulas are of the form

aₙ = aₙ₋₁ + d,

and the explicit formula (like tₙ in your problem), are of the form

aₙ = a₁ + (n - 1)d,

where d is the common difference. So converting between the two of these isn't so bad. In this case, your problem wants you to have an idea of what t₁ is (well, every answer says it's -5, so there you are) and what tₙ₊₁ is. Using the formulas above and your given tₙ = -5 + (n - 1)78, we can see that the common difference is 78, so no matter what we get ourselves into, the constant being added on at the end should be 78. That automatically throws out answer choice D.

But to narrow it down between the rest of them, you want to use the general form for the recursive formula and substitute (n + 1) for every instance of n. This will let you find tₙ₊₁ to match the requirements of your answer choices. So

tₙ₊₁ = t₍ₙ₊₁₎₋₁ + d ... Simplify the subscript

tₙ₊₁ = tₙ + d

Therefore, your formula for tₙ₊₁ = tₙ + 78, which is answer choice C.

6 0
2 years ago
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Please helppp with this​
kiruha [24]

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3 one

Step-by-step explanation:

7 0
3 years ago
For each function shown:
mestny [16]
#1: y= 0.5+3 x
which means that x= y/3 - 0.5

#2: y= 3(0.5) x
which means that y= 1.5 x
that means x = y/1.5

Hope it can help
5 0
3 years ago
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