Answer:
- 3 lbs of $6 coffee
- 2 lbs of $4.50 coffee
Step-by-step explanation:
Let x represent the number of pounds of $6 coffee. Then the total cost of the mix is ...
6x + 4.50(5 -x) = 27
1.5x +22.50 = 27.00 . . . . . . simplify
1.5x = 4.50 . . . . . . . . . . . . . . subtract 22.50
x = 3 . . . . . . . . . . . . . . . . . . . .divide by 1.5; pounds of $6 coffee
5 -x = 2 . . . . . . . . . . . . . . . . . pounds of $4.50 coffee
3 pounds of $6 coffee and 2 pounds of $4.50 coffee were used in the mix.
Answer:
1: 1/2 or 1 divided by 2
2:
3:
4:
Step-by-step explanation:
\- x + s q r t 1 − x 2 \- = s q r t 2 ( 2 x 2 − 1 ) \- x + s q r t 1 − x 2 \- = s q r t 2 ( 2 x 2 − 1 ) \- x + s q r t 1 − x 2 \- = s q r t 2 ( 2 x 2 − 1 ) \- x + s q r t 1 − x 2 \- = s q r t 2 ( 2 x 2 − 1 ) \- x + s q r t 1 − x 2 \- = s q r t 2 ( 2 x 2 − 1 ) \- x + s q r t 1 − x 2 \- = s q r t 2 ( 2 x 2 − 1 ) \- x + s q r t 1 − x 2 \- = s q r t 2 ( 2 x 2 − 1 ) \- x + s q r t 1 − x 2 \- = s q r t 2 ( 2 x 2 − 1 ) \- x + s q r t 1 − x 2 \- = s q r t 2 ( 2 x 2 − 1 ) \- x + s q r t 1 − x 2 \- = s q r t 2 ( 2 x 2 − 1 ) \- x + s q r t 1 − x 2 \- = s q r t 2 ( 2 x 2 − 1 ) \- x + s q r t
Answer:
Step-by-step explanation:
For this case we can define the random variable of interest as: "The nicotine content in a single cigarette " and for this case we know the following parameters:
And for this case we select a sample size of n =100 and we want to find the following probability:
And for this case we can use the z score formula given by:
And replacing we got:
And we can find the required probability with the normal standard table and we got:
Area of triangle = base x height /2
48 = (a+14)a/2
a^2 +14a = 96
a^2 + 14a - 96 = 0
Solving for a = 5.04
Answer:
98.7 cm
Step-by-step explanation:
The length in centimeters will always be 1/10 of the length in millimeters.
