Answer:
a. 4 : 1
b. 2 students
c. 3 : 1
Step-by-step explanation:
a. There were 12 students who got a C and 3 students who got As. The ratio is therefore:
12 : 3
Take it to the lowest form by dividing both sides by 3:
= 4 : 1
b. There were 4 students with a D grade and 8 with a B. The ratio is:
= 4 : 8
Taken to the lowest form that would be:
= 1 : 2
This means that for every student receiving a D, 2 students received an A.
c. 12 students received a C and 4 students received a D. That ratio is therefore:
= 12 : 4
Take to the lowest form by dividing both sides by 4:
= 3 : 1
So I guess this would look like this originally 113/10, then as a mixed number 11 3/10
Answer: The temperature that separates the top 7% with the bottom 93% is 99.12 degrees.
The z-score that corresponds to 93% is about 1.48. If we write the equation for the z-score, we can solve for the missing temperature.
The equation would be:
(x - 98.2) / 0.62 = 1.48
x - 98.2 = 0.9176
x = 99.12 degrees
Answer:
-17/10 ( or 1 7/10)
Step-by-step explanation:
-2 1/8 ÷ 1 1/4 (convert into improper fractions)
= (-17/8) ÷ (5/4)
= (-17/8) x (4/5)
= - (17 x 4) / (8 x 5)
= -68/40
= -17/10 ( or 1 7/10)
Answer:
The required length is 37.68 cm
Step-by-step explanation:
We have given the radius of which is 3 cm and 
which is 
We will use 
We know the formula for length of arc which is:
length of arc=radius x angle
We will substitute the values given we will get:
Hence, the required length is 37.68 cm
