Answer:
C. 64
Step-by-step explanation:
x° = 1/2[(360° - 2*58°) -2*58°]
x° = 1/2[(360° - 116°)- 116°]
x° = 1/2[244°- 116°]
x° = 1/2[128°]
x° = 64°
x = 64
Answer:
Cost per kg = $2
Step-by-step explanation:
Given that:
7kg of soybean oil costs $4/kg
So 7kg of soybean oil will cost = 7 * 4 = $28
14kg of canola oil costs $1/kg
So 14kg of canola oil will cost = 1* 14 = $14
Now for mixture:
Quantity of (soybean oil + canola oil) = Cost of (soybean oil + canola oil)
7kg + 14kg = $28 + $14
21kg = $42
Now finding cost per kg of mixture:
Cost per kg = $42/21
Cost per kg = $2
i hope it will help you!
Since the first equation already gives you y, substitute Y for 4x in the second equation.
y=4x
x+y=5
x+(4x)=5
5x=5
x=1
Now that you know x, plug in x for 1 in the first equation.
y=4(1)
y=4
Answer: (1,4)
Answer:
3 students got a perfect score.
Step-by-step explanation:
Total number of students in Mrs. Grape's class = 90
Number of students who earned an A = 3/10 of 90
= 
= 27 students
Out of 27 students the number of students who got perfect score
= 
= 3 students
3 students got a perfect score.
