Step-by-step explanation:
x =7y ----(1)
xy=252 ----(2)
(1) into (2):
(7y)(y) = 252

7y=15.874....
y=2.27
y value into (1)
x= 7(2.268)
x=15.87
the two numbers are 15.87 and 2.27 (Ans)
A. 30 sixth graders
b. 12 sixth graders
c. If the school has 40 students and the total of students is 70, the number of sixth graders is x
d. 36 students
Answer:
<h2>
1240.4 mm²</h2>
Step-by-step explanation:

Answer
w=18
Step-by-step explanation:
Answer:
He did not wait as long between each treatment of ant killer.
Step-by-step explanation:
He did one on monday and another on saturday then checked them on sunday