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Ilya [14]
3 years ago
15

Colton purchased a sofa originally priced at $540 for 30% off. What was the sale price of the sofa?

Mathematics
2 answers:
ss7ja [257]3 years ago
7 0
To find the amount you must multiply percentage by the original number. The correct answer would be $162
horsena [70]3 years ago
4 0
540 * .30 is 162 so it would be $162. 
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Step-by-step explanation:

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2 years ago
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Tyler took a total of 16 quizzes over the course of four weeks. How many weeks of school will Tyler have to attend this quarter
wlad13 [49]

Answer:

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Step-by-step explanation:

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7 0
2 years ago
Marty is taking piano lessons. She is going to practice every afternoon. The 1st week she practiced for 11 minutes each day. The
defon

Answer:

m=7w+4

Step-by-step explanation:

<u>Linear Modeling</u>

It consist is setting up a linear relationship between two variables, given some experimental data. Only 2 points are needed to set up the equation of a line, but if more than 2 points are used, then the result should use statistical approaches like linear regression to find the best-fit line.

For the question at hand, Marty practices his piano lessons 11 minutes the week #1. It provides the first point (1,11). He practices 25 minutes per day on the third week. It gives us another point (3,25). This is enough to find the equation of a line. The general formula for a line, having two points (m1,w1) (m2,w2) is

\displaystyle m-m_1=\frac{m_2-m_1}{w_2-w_1}(w-w_1)

Let's plug in our values

\displaystyle m-11=\frac{25-11}{3-1}(w-1)

Simplifying:

m-11=7w-7

\boxed{m=7w+4}

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3 years ago
All statements about opposite that are true.
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Whats the topic that you want me to tell about
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