The problem belongs to indirect variation.
formula for indirect variation is 
we have 
we know that 
now we need find 
when 
Answer:
There were 84 students in 6th grade, 68 in 7th grade, and 90 in 8th grade.
Step-by-step explanation:
Given that Elk middle school has 264 students, and there are 84 students in the eighth grade, and there are 22 fewer seventh-grade students than sixth-grade students, to determine how many students there are in each grade, the following calculation must be performed:
(264 - 84) / 2) - 22 = X
(180/2) - 22 = X
90 - 22 = X
68 = X
6th grade = 84
7th grade = 68
8th grade = 90
Therefore, there were 84 students in 6th grade, 68 in 7th grade, and 90 in 8th grade.
Answer: 187500
Step-by-step explanation:
Interest= principal ×rate×time/100
Let interest be I
Principal be P
Rate be r
Time be t
So we have
I=p×r×t/100
P in the question is 150000
T is 1year
R is 25%
Substitute for the values
I=150000×1×25/100
Interest= 37500
To know the exact cost now
Add the interest to the principal cost
Exact value=interest +principal
Exact value =37500+150000
Exact value=187500
The cost of the house now is=187500
Answer:
10.50
Step-by-step explanation:
in total she would have spent 10.50 because 8.75 for the peaches and 1.75 for the ice cream sandwich
