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2 years ago

Three less than the product of seven and some number is eleven.

Mathematics

2 answers:

Andreas93 [3]2 years ago

6 0

Answer:

7x-3=11

Step-by-step explanation:

Take the word problem and break it down. Where it says "is eleven" is the "=11" part, and then the first phrase, "three less than the product of 7 and some number implies "7(x) - 3", where x is "some number", also known as a variable.

Hope this helps!

mrs_skeptik [129]2 years ago

5 0

Answer:

(7 x n) - 3 = 11

Step-by-step explanation:

the n is the variable for ¨some number¨

Hope it helps!

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Answer:

Solution:

Given,

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C = ?

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2 years ago

What does 7m- m equal

Norma-Jean [14]

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90°

Step-by-step explanation:

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hram777 [196]

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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