So we solve for each
70% of 100=70
students who didn't buy lunch=100-70=30
some of the 70 left so that the students who bought lunch, are 60% of those who are left
we know that the students who didn't buy lunch didn't change number so therefor
100% of students left-60%=40%= students that didn't buy lunch=30 so
40%=30
20%=15
100%=75
there were 75 students lfet in the cafeteria
Isn’t it B 500 foot pounds
Answer:
The answer is x = 14 the more expensive scarf
Step-by-step explanation:
x + y = 25
3 + y + y = 25 (x = 3 + y)
3 + 2y = 25
2y = 25 - 3
2y = 22
y = 22/2
y = 11
x = 3 + y
x = 3 + 11
x = 14 (the more expensive scarf)
(x,y) ; (14,11)
Answer:
yes she is correct
Step-by-step explanation:
because in 1 year it will go up 4.5%
Answer:
Number of year(n) = 3.4 year (Approx)
Step-by-step explanation:
Given:
Purchase value of car = $27,000
Depreciation rate per year (d) = 18% = 0.18
Future price = half of its original value = $27,000 / 2 = $13,500
Find:
Number of year(n) = ?
Computation:
Number of year(n) = 3.4 year (Approx)
