Answer:
im guessing the answer would be C but im not sure
before hand sorry if you get it wrong
Step-by-step explanation:
Answer: A=20
Step-by-step explanation:
3×A=30+30............eqn 1
3A=60
A=60/3
A=20
Substitute A=20 into equation 1
3x20= 30+30
Answer:
jim is 24 years old, Mark is 20 years old
Step-by-step explanation:
This prompt can be set up using this equation:
Let's represent Mark's age by variable m and Jim's age by variable J.
j + m = 44
m + 4 = j
m = j - 4
j + (j - 4) = 44
2j - 4 = 44
2j = 48
j = 24
So, jim is 24 years old, meaning mark must be 20 years old. 20 + 24 results in 44 years old together.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
<em>Let me know if you have any further questions! Spread the love.</em>
Step-by-step explanation:
The slope is described by the the initial and final value of one quantity over the difference between the initial and final of the other
Rate: for points on a Cartesian plane,(x1, y1) and (x2, y2)
the slope, m= (y2 - y1)/(x2 - x1)
The rate of change on the other hand is mostly refers to how much a quantity is changing with time i.e the rate of change of y from y1 to y2 can be expressed as
rate = (y2 - y1)/(t2 - t1)...where t1 and t2 are the various time in y1 and y2 respectively...
