Answer:
10.8kg
Step-by-step explanation:
Before he was on the diet he already weighed 80 kilograms, so it is not important to determining how much weight we gains in two months. Instead we need to focus on the 5.4t part of the equation. t represents the number of months so we need to substitute 2 for t and you get
5.4t
5.4(2)
10.8kg
Y= 42. 3(3+7)+12
3(10)+12
30+12
42
y=42
Yes, your answer is correct
okay. the point has an x and y value. place them into the equation.
1=m(1)+b
m=slope, and theequation tells you that slope is 7.
1=7(1)+b
now you need to figure out what b is.
1=7(1)+b
^
1= 7 +b
-7 -7
---------------
-6=B
b is 6. now place it into the equation, replacing the x and y values back.
y=7x-6.
write 7 and 6 in the boxes (the negative for the six has already been provided)
