First, put each grade in terms of x. Most grades are compared to Sophomores, so I made that x
Freshmen = x + 10
Sophomores = x
Juniors = x + 20
Seniors = (x + 10) + 7 = x + 17
Then, the total number of students = 363, so we’ll make an equation that adds them all up in terms of x to equal 363
(x + 10) + x + (x + 20) + (x + 17) = 363
Combine like terms:
4x + 47 = 363
Subtract 47 from both sides:
4x = 316
Divide both sides by 4:
x = 79
The question was how many seniors there are. Seniors were x + 17, so 79 + 17 = 96
Answer:
Option D) 58 39/64 inches
Step-by-step explanation:
we know that
The scale drawing is

convert to an improper fraction

That means
121 in in the actual, represent 8 in on a scale drawing
To find how long is the actual part for 3 7/8 inches long as the drawing
Apply proportion
First convert to an improper fraction

convert to mixed number

Answer: 1/2
<u>Multiply</u>
2×5=10
10/4-2 is your new problem
<u>Simplify</u>
10/4 = 5/2
5/2-2 is your new problem
<u>Subtract</u>
5/2-2=1/2
Step-by-step explanation:
hope it will help you thank you