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tekilochka [14]
3 years ago
5

Sunny earns \$12$12dollar sign, 12 per hour delivering cakes. She worked for xxx hours this week. Unfortunately, she was charged

\$15$15dollar sign, 15 for a late delivery on Tuesday. How much money did Sunny earn this week?
Mathematics
1 answer:
dezoksy [38]3 years ago
7 0

Answer:

12x - 15 dollars

Step-by-step explanation:

Sunny earns $12 per hour for delivering cakes.

She worked for x hours this week.

Unfortunately, she was charged $15 for a late delivery on Tuesday

She was supposed to earn $12 × x = $12x this week

But she was charged $15 for late delivery on Tuesday

So her net earning this week is; $12x - $15

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How many terms are there in a geometric series if the first term is 4, the common ration is 3 and the sum of the series is 160
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\bf \qquad \qquad \textit{sum of a finite geometric sequence}
\\\\
S_n=\sum\limits_{i=1}^{n}\ a_1\cdot r^{i-1}\implies S_n=a_1\left( \cfrac{1-r^n}{1-r} \right)\quad 
\begin{cases}
n=n^{th}\ term\\
a_1=\textit{first term's value}\\
r=\textit{common ratio}\\
----------\\
a_1=4\\
r=3\\
S_n=160
\end{cases}

\bf 160=4\left( \cfrac{1-3^n}{1-3} \right)\implies 160=4\left( \cfrac{1-3^n}{-2} \right)\implies 160=-2(1-3^n)
\\\\\\
160=2(3^n-1)\implies \cfrac{160}{2}=3^n-1\implies 80=3^n-1
\\\\\\
81=3^n~~
\begin{cases}
81=3\cdot 3\cdot 3\cdot 3\\
\qquad 3^4
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3 0
2 years ago
Given the graph of g(x), describes the transformation of the parent function f(x)=2^x
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Answer:

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2 years ago
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Try this one:


y = -\frac{1}{5} |x-4|+2

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Bob's password consists of a non-negative single-digit number followed by a letter and another non-negative single-digit number
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5 0
1 year ago
The rate of change in the function y=x+4 is________ the rate of change of the function represented in the table.
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\bf y=\stackrel{slope}{1}x+4\qquad \qquad 
\begin{array}{ccll}
x&y\\
\text{\textemdash\textemdash\textemdash}&\text{\textemdash\textemdash\textemdash}\\
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\\\\\\
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\bf \begin{array}{lllll}
&x_1&y_1&x_2&y_2\\
%   (a,b)
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\end{array}
\\\\\\
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4 0
3 years ago
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