Answer:
Step-by-step explanation:
6 greeting cards for 23.40 is the best price! It is $3.90 per each card.
Answer:
x = -7
Step-by-step explanation:
2x+3 = x-4
2x-x = -4-3
x = -7
hope it helps ☺️
20.41
(one pound is .454 kilograms)
Answer:
It will take 8 minutes for the temperature to reach 76°
Step-by-step explanation:
The expression for the total temperature in degrees at time t can be written as;
T=I+EM
where;
T=total temperature
I=initial temperature
E=temperature increase per minute
M=number of minutes
This can also be written as;
total temperature=initial temperature+temperature increase per minute×number of minutes
In our case;
T=76°
I=40°
E=4.5°
M=m
replacing;
76=40+(4.5×m)
4.5 m=76-40=36
(4.5 m)/4.5=36/4.5
m=8
It will take 8 minutes for the temperature to reach 76°
