Answer:
1,600$
Step-by-step explanation:
20x80=1,600
The answer would be a 3/4 if you are subtracting
Answer:
Glass is the purest, safest material for both tea kettles and teapots. In our research, glass is the safest of all the materials. One type of glass known for its long safety record and quality is borosilicate glass. Borosilicate glass does not release any metals or toxins, and it does not contain a glaze.
Step-by-step explanation:
Answer:
Step-by-step explanation:
Null hypothesis: u = 0.72
Alternative hypothesis: u =/ 0.72
Using the z score formula
z = p-P / √(P(1-P)/n)
Where p (sample proportion) is 0.75, P (population proportion) is 0.72, and n = 900.
z = 0.75-0.72 / √(0.72(1-0.72)/900)
z = 0.03/√(0.72(0.28)/900)
z = 0.03/√(0.2016/900)
z = 0.03/ √0.000224
z = 0.03/0.015
z = 2.0
To determine the p-value at an assumed significance level of 0.05 for a two tail test using a z score of 2, using the p value calculator, the p value is 0.0455.
$56.25
$15 ÷ 20 cards = $.75 per card
$.75 × 75 cards = $56.25