A -120 difference will be seen in the temperature within a 7 hour period
<u>Equation</u>
<em>-</em>30 x 7
<em>Multiplying two of different signs ( - + , + - ) will always be negative.</em>
<em>Multiplying two of the same sign ( - - , + + ) will always be positive.</em>
Answer:
A=3.5
B=4.5
C=9.5
Step-by-step explanation:
You can solve A and C with the last two equations through trial and error
then you plug in the solved A into the first equation to solve for B
Answer:
Step-by-step explanation:
Lets start with 13
-2(13 + 3) = -4(13) + 20
-32 = -52 + 20
-32 = -32
x = 1 basically
now 19
-2(19 + 3) = -4(19) +20
-44 = -76 + 20
-44 = -56
so divide those
-2(31 + 3) = -4(31) + 20
-68 = -124 + 20
-68 = -104
divide them
-2(37 + 3) = -4(37) + 20
-80 = -148 + 20
-80 = -128