Let us say that:
o = cost of oranges per pound
p = cost of pears per pound
so that:
o = p – 2
Therefore:
10o + 8p = 61
10 (p – 2) + 8p = 61
10p – 20 + 8p = 61
18p = 81
p = 4.5
p = $4.5 per pound
So 3 pounds of pears would cost:
total cost = 3 * 4.5
total cost = $13.5
The formula is given as
, multiplying out the bracket gives
, rearranging to make
the subject
Hence, the correct answer is option d
Answer:
Chlorine: -34 °C
Krypton: -153.2 °C
Step-by-step explanation:
Boiling point of elements in degree Celsius (°C)
Argon: -185.8 °C
Chlorine: -34 °C
Fluorine: -188.1 °C
Hydrogen: -252.87 °C
Krypton: -153.2 °C
Helium: -268.9 °C
Boiling points that are above the boiling point of Argon.
Chlorine: -34 °C
Krypton: -153.2 °C
Answer:
sin=0.945
cos=0.325
tan=2.902
Step-by-step explanation:
In a scientific calculator you simply enter "240°" then press cos/sin/tan after the degrees.