Question

Sophie is training for a triathlon by running, biking, and swimming. last week, she ran, biked, and swam 104 miles altogether. she ran 3 times as many miles as she swam. she biked 3 times as many miles as she ran. how many miles did sophie bike last week

Answer 1

72 miles Sophie bike last week. we get the answer by making and solving equation.

Let's take x miles, Sophie swam

from the question we get,

she runs ⇒3 × x = 3x miles

she biked ⇒ 3 × 3x = 9x miles

Then by solving, ⇒3x + 9x + x = 104

                          ⇒ 13x = 104

                          ⇒ x = 8

therefore, we get

9x = 9 × 8

    = 72 miles

lastly, we get that she biked 72 miles last week.

There are two types of equations: identities and constraints. The ID applies to all values ​​of the variable. Constraint expressions apply only to specific values ​​of variables. Equations are written as two expressions joined by an equal sign.

There are three main forms of linear equations. Point-slope format, standard format, and slope-intercept format.

Learn more about the equation here: brainly.com/question/2972832

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