Answer:
18 - (-12)
Step-by-step explanation:
Final temp. - Initial temp. = the change in temperature
By -12, we're indicating that is below zero (which is obvious) meaning that it is not in the "normal" scale nor in the imaginary scale of numbers. So, we can operate the following...
18 - (-12) = 30
So the temperature changed by 30 values or the temperature increased by 30 values, because the number is positive.
Answer: Your answer would be D (:
Step-by-step explanation: Just pretend that each cube is worth 7 so you would multiply 7x7x7x7x7x7= 42(: Hope This Helped!!!!(:
Answer:
y=4/5-2
Step-by-step explanation:
m=slope
m=4/5
(x,y)
(-5,-2)
y=mx+b
y=4/5-2
Answer:
17,500,000 cm.
Step-by-step explanation:
3.5cm(5,000,000 years) = 17,500,000
-1 = z/3 - 7
Emily's Work:
-1 = z/3 - 7
-1(3)=z/3(3)-7
-3 = z - 7
-3 -7 = z - 7
z = -10
Right away without having to start at the beginning, I see that she has made a mistake at the 4th-5th line of work.
Instead of adding 7 to both sides, she subtracts it and still leaves it in and doesn't fully finish the equation, as it would really be z-7 = -10
In order to solve it, follow these steps:
Rewrite the initial equation as follows:
x/3 - 7 = -1
Multiply both sides by 3
x/3(3)-7(3)=-1(3)
x - 21 = -3
Add 21 to both sides
x = 18
