Answer:
<u>t = t₀ - 3n</u>
Step-by-step explanation:
Let t be the temperature and t₀ be the initial temperature of the day
Let n be the number of hours after the initial temperature ( t₀) was registered
Let -3 be the constant of change of temperature ( In 4 hours it went down 12 degrees)
Now, let's write down the expression that shows the temperature change each hour, this way:
t = t₀ - 3n
After 2 hours
t = t₀ - 3 * 2 = t₀ - 6
After 5 hours
t = t₀ - 3 * 5 = t₀ - 15
After 3 hours and 30 minutes
t = t₀ - 3 * 3.5 = t₀ - 10.5
Answer:
Question 1 - 81.74 Pound sterling
Question 2 - 20.28 Pound sterling
Question 3 - 21.72 United States Dollar
Question 4 - 429.38 New Zealand Dollar
Question 5 - 451.28 Euro
Question 6 - 2,936.88 Chinese Yuan
(That's all I got.)
Answer: 2a - 7
<u>Step-by-step explanation:</u>
Ana: a
Mrs Vargas: 4a - 4
Leo: 2a + 3
Mrs Vargas - Leo
= (4a - 4) - (2a + 3)
= 4a - 4 -2a - 3
= 2a - 7
You only need to know one side, you can use , tan, sin, or cos of the angles to find the other 2 sides.
Answer:
x=20. y=15
Step-by-step explanation:
in similar triangles the sides are all in proportion. this means:
so:
x=5×4
x=20
and...
y=3×5
y=15
