Semester 1:
let the number of students in the art class be 2a, and the number of the students in the gym class be 7a. (check: the ratio is 2a:7a = 2:7)
so the total number of students is 9a.
semester 2:
the 9a students are go to the art class and gym class at a a ratio of 5: 4,
so 5a students go to the art class, and 4a students go to the gym class.
<span>75 students are in art class in second semester means that 5a=75,
so a=75/5=15.
In the 1st semester the number of students was:
art class: 2a=2*15=30
gym class: 7a=7*15=105</span>
Answer: C, 7s + 3t and 3t + 7s.
Step-by-step explanation: Nothing is changing between the expressions except for their position. In addition, position does not matter though, so these two are the SAME EXPRESSION
Nananannsnznznnsnsnznsjjsjsjsjsjsjjsjsjsjsjsjs
THE ANSWER IS TRUE IF THEY CROSS PATHS WITH EACH OTHER THAN YES
Answer:
168 cents or = $1.68
Step-by-step explanation:
11 inches of wire cost 66 cents
28 inches of wire cost x? cents
x = 28 * 66 / 11 = 168 cents or = $1.68
Answer
168 cents or = $1.68
