Step-by-step explanation:
Let's say c is the price of cinnamon tea, and s is the price of spice tea.
10c + 2s = 13
16c + 8s = 28
Divide the second equation by 4:
4c + 2s = 7
Subtract from the first equation:
6c = 6
c = 1
Use any equation to find s.
s = 1.5
Therefore, the cinnamon tea costs $1 per pound and the spice tea costs $1.50 per pound.
Answer: not sure
but I need points
Step-by-step explanation:
JUST KIDDING It’s A I did this in school before and got it correct :)
7/20+3/9
7/20+1/3
21/60+20/60=41/60
The 95% C.I will be given as follows:
mean=199
standard deviation=16.5
n=12
thus:
value of z corresponding to 95% is 1.96, thus the 95% C.I will be found as follows:
μ+/-z(σ/√n)
thus plugging in the values we get:
199+/-1.96(16.5/√12)
=199+/-9.3358
Answer: 199-9.3358≤x≤199+9.3358
It should= 360°
so 74+93+117=284
360-284= 76
so answer A 76°