Answer:
19
Step-by-step explanation:
(5x+37)+(3x-9)=180
8x= 152
x=19
Answer:
x = 71
Step-by-step explanation:
The sum of the angles in a triangle is 180
x +82+27 =180
Combine like terms
x +109 = 180
Subtract 109 from each side
x+109-109 = 180-109
x = 71
Answer:
[143.61, 156.39]
Step-by-step explanation:
Because the population standard deviation is not available AND the sample size is less than 31, we can use a t procedure here.
Plug these values into your calculator:
Sample mean = 150
Sample size = 16
Standard deviation = 12
Confidence level = 95% = 0.95
and get [143.61, 156.39] as your confidence interval
So we need to isolate the variable. In order to do that, we need to multiply both sides by 5/4.
Why? That's so that 4/5z will be canceled out when multiplied by 5/4 to get just z.
And so, we would get 20 as our answer.
895/2=447.5
447.5-177=270.5
447.5+177=654.5
diamond has 270.5
and
jenny has 654.5
