18/4 = x/30
18x30 /4 = 135 minutes or 2 hours and 15 minutes.
Answer:
C. greater than 90 and less than 180 degrees.
Step-by-step explanation:
An obtuse angle is angle in the second quadrant.
This angle is more than but less than .
Therefore the correct answer is option C.
Note however that a angle is called a right angle and an angle greater than but less than is called an acute angle.
9514 1404 393
Answer:
- 25 pounds cashews
- 15 pounds peanuts
Step-by-step explanation:
Let c represent the number of pounds of cashews in the mix. Then 40-c is the number of pounds of peanuts. The total cost of the mix is ...
10c +2(40 -c) = 7(40)
8c +80 = 280 . . . . simplify
c +10 = 35 . . . . . . . divide by 8
c = 25 . . . . . . . . . . subtract 10
40-c = 40-25 = 15 . . . . pounds of peanuts
25 pounds of cashews and 15 pounds of peanuts should be used in the mix.