Ophelia

Ophelia recorded the temperature of a cold store every two hours.
1. At 6am it was -4°C and at 8am it was -1°C. By how much did the temperature rise?
2. The temperature went up by 5°C in the next two hours. .What was the temperature at 10am?

Correct result:

t1 =  3 °C
t2 =  4 °C

Solution:

A=4 B=1 t1=BA=(1)(4)=3CA=-4 \ ^\circ \text{C} \ \\ B=-1 \ ^\circ \text{C} \ \\ t_{1}=B-A=(-1)-(-4)=3 ^\circ \text{C}
t2=B+5=(1)+5=4Ct_{2}=B + 5=(-1) + 5=4 ^\circ \text{C}



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