3 years ago

Find the sum of the arithmetic series in which a1 = –68, d = –3, and n = 20.

Mathematics

1 answer:

harkovskaia [24]3 years ago

6 0

Step-by-step explanation:

Sum of 20 terms in thr arithmetic sequence adds up to -1930

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Otrada [13]

The answer to the question

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3 years ago

Producing a musical costs $88,000 plus $5900 per performance. one sold out performance earns $7500 in revenue. If every performa

yan [13]

X = # of perfomances

y = total amount of money

Income: y = 7500x

Expense: y = 5900x + 88000

Substitution:

7500x = 5900x + 88000

1600x = 88000

x = 55

y = 7500(55) = $412,500

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3 years ago

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aliina [53]

Answer:

Step-by-step explanation:

Let the number be "x"

We translate the word equation to algebraic equation.

First,

subtract 6 from me, so we have:

x - 6

Now,

Multiply by 2, so we have:

2(x-6)

Now,

Subtract 40, then divide by 4:

$\frac{2(x-6)-40}{4}$

Now, you get "8", so equate this to 8, we get:

$\frac{2(x-6)-40}{4}=8$

We now solve using algebra:

$\frac{2(x-6)-40}{4}=8\\2(x-6)-40=4*8\\2(x-6)-40=32\\2x-12-40=32\\2x-52=32\\2x=32+52\\2x=84\\x=42$

The number is 42

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3 years ago

Mike is reserving a room in frances, which uses euros. The room charge is 75 euros. If the conversion rate was 1 euro equals $1.

rusak2 [61]

To convert the euros into dollars simply multiply 75x1.29.

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3 years ago

Help please! Quickly!

Stells [14]

Answer:

1. x=--3

2. x=2

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4. x=-1/3

Step-by-step explanation:

Hope this helps UwU

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3 years ago