At a certain range of depths, the temperature of Earth's interior, in degrees Celsius, is expressed as 10d+20, where d is the depth in kilometres. Determine the temperature at a depth of 15km.
I really don't get this, plz help!
i really need some homework help im desperate!!At a certain range of depths, the temperature of Earth's interior, in degrees Celsius, is expressed as 10d+20, where d is the depth in kilometres. Determine the temperature at a depth of 15km
five more than three times a number is forty-one. Let x represent the number. Write an equation and solve for the variable.
five more ---> + 5
three times a number ---> 3x
is ---> =
forty-one ---> 41
5+3x=41 ??
i know how to write it i don't know how to answer it!
would this be right: 3 times x plus 5 equals 41
x times 3 divided by 3 = 41 divided by 3
To determine the temperature at a depth of 15 km, we can substitute the value of d into the expression given: 10d + 20.
Step 1: Plug in the value of d (depth) as 15 km into the expression.
Temperature = 10 * 15 + 20
Step 2: Evaluate the expression using the order of operations (also known as PEMDAS or BIDMAS).
Temperature = 150 + 20
Step 3: Perform the addition.
Temperature = 170
Therefore, the temperature at a depth of 15 km is 170 degrees Celsius.