Simplify 5 n (15 - 2). a.5n 13 b.13n 5 c.n 18

Mathematics

2 answers:

slava [35]3 years ago

4 0

Answer: 5n 13, because you solve the quantity in parentheses first

Lady_Fox [76]3 years ago

4 0

Answer:

A) 5 n 13 .

Step-by-step explanation:

Given : 5 n (15 - 2).

To find : Simplify .

Solution : We have given 5 n (15 - 2).

By the BODMAS rule : We first solve the parenthesis ( Bracket ) in expression.

So,

5 n ( 13).

5 n 13 .

Therefore, A) 5 n 13 .

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Ne4ueva [31]

Answer:

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Step-by-step explanation:

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3 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

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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

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