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6 January, 01:44

When Pete had a fever, his temperature was

101.4°F. After taking some medicine, his

temperature was 99.2°F. The equation

101.4-d=99.2 gives the number of degrees

d that Pete's temperature decreased. What is

the solution of the equation?

+3
Answers (2)
  1. 6 January, 01:55
    0
    Answer:Simplifying

    101.4 + - 1d = 99.2

    Solving

    101.4 + - 1d = 99.2

    Solving for variable 'd'.

    Move all terms containing d to the left, all other terms to the right.

    Add '-101.4' to each side of the equation.

    101.4 + - 101.4 + - 1d = 99.2 + - 101.4

    Combine like terms: 101.4 + - 101.4 = 0.0

    0.0 + - 1d = 99.2 + - 101.4

    -1d = 99.2 + - 101.4

    Combine like terms: 99.2 + - 101.4 = - 2.2

    -1d = - 2.2

    Divide each side by '-1'.

    d = 2.2

    Simplifying

    d = 2.2
  2. 6 January, 02:12
    0
    2.2 degrees F

    Explanation:

    101.4 - 99.2 = 2.2
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