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Effectus [21]
3 years ago
7

How do I do 1 and 5?

Mathematics
1 answer:
Nat2105 [25]3 years ago
8 0
I will show you how to do #5:

a).   -20 + 2(n-1)        Original Expression
       -20 +2n - 2          Distributive Property
       -22 + n                Combine Like Terms


Final Expression: -22 + n


b).  1.5 + (-2.5)(n -1)     Original Expression 
       1.5 + -2.5n + 2.5     Distributive Property
       4 - 2.5n                     Combine Like Terms 


Final Expression: 4 - 2.5n




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If 12 pencils cost $4.00, how much does 20 pencils cost?
natita [175]

Answer:

$6.66

Step-by-step explanation:

20 times 4 = 80 and 80 divided by 12 is 6.66666667

4 0
3 years ago
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What is the value of this expression if h<br> = 8,j = -1, and k<br> =<br> -12
Rashid [163]

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Step-by-step explanation:

The given expression is :

\dfrac{j^3k}{h^0}

We need to find the value of this expression when h = 8, j = -1 and k = -12.

Put all the values in the given expression.

\dfrac{j^3k}{h^0}\\\\=\dfrac{(-1)^3\times (-12)}{(8)^0}\\\\=\dfrac{-1\times -12}{1}\\\\=12

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3 years ago
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Step-by-step explanation:

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Assuming the lines are parallel angel 4 corresponds with angle ___
Soloha48 [4]

Answer:

∠ 2

Step-by-step explanation:

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A high-interest savings account pays 5.5% interest compounded annually. If $300 is deposited initially and again at the first of
inessss [21]
That is an annuity and use the attached formula.

Total = 300 * [(1.055)^11 -1] / .055 -300
Total = 300 * <span> <span> <span> 1.8020924036  </span> </span> </span> -1 /.055 -300
Total = 300 * <span>.8020924036 / .055 - 300
</span>Total = 300 * <span> <span> <span> 14.5834982473 </span> </span> </span> -300
Total = <span> <span> <span> 4375.0494741818 </span> </span> </span> -300
Total = <span>4075.05


</span>

4 0
3 years ago
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