3 years ago

Simplify the expression. Justify each step.

Mathematics

1 answer:

Verizon [17]3 years ago

6 0

True it is correct! Your work is well justified. :)

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Step-by-step explanation:

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2 years ago

Pls help I don't understand:

sineoko [7]

Answer:

Part a) $T(d)=2d+30$

Part b) $T(6)=42\ minutes$

Step-by-step explanation:

Part a) Write an equation for T (d)

Let

d ----> the number of days

T ---> the time in minutes of the treadmill

we know that

The linear equation in slope intercept form is equal to

$T=md+b$

where

m is the slope or unit rate

b is the y-intercept or initial value

In this problem we have

The slope or unit rate is

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The y-intercept or initial value is

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substitute

$T(d)=2d+30$

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For d=6

substitute in the equation and solve for T

$T(6)=2(6)+30$

$T(6)=42\ minutes$

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2 years ago

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Step-by-step explanation:

None of these,

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this is the correct answer

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3 miles:
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