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22-09-2017
Mathematics

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Two more than four times the sum of yesterday's high temperatures in degrees Fahrenheit and 7 is equal to the current temperature in degrees Fahrenheit.
a. Write an expression for the current temperature using t as yesterday's high temperature in your expression.
b. simplify the expression
c. if yesterday's high temperature was 3 degrees Fahrenheit, what is the current temperature?

Respuesta :

texaschic101 texaschic101

22-09-2017

4(t + 7) + 2 <== current temp expression

4t + 28 + 2 =
4t + 30 <=== simplified

if yesterdays high temp is 3...
4t + 30 =
4(3) + 30 =
12 + 30 =
42 Fahrenheit <=== current temp

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