Washington elementary has 4,358 students.jefferson high schol has 3 times as many students as washington elementary.about how mn
ay students does jefferson high school have?
2 answers:
Answer: 13,074
Step-by-step explanation:
Given : Number of students in Washington elementary = 4,358
Since, .Jefferson high school has 3 times as many students as Washington elementary.
Then, the Number of students in Jefferson high school will be :-
Hence, there are 13,074 students in Jefferson high school.
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Answer:
Step-by-step explanation:
The amount formula in compound interest is:
where:
P = principal amount
r = annual interest
n = number of compounding periods
t = number of years
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P = $2000
t = 7 (number of years from 6th to 13th bday)
n = 4 (quarterly in a year)
Then,
Answer:
4 liters of 5% and 16 liters of 17.5%
Step-by-step explanation:
Let quantity of 5% be x liters and of 17.5% be y liters
x+y=20 hence y=20-x
Introducing percentages
0.05x+0.175(20-x)=0.15*20
0.05x+3.5-0.175x=3
-0.125x=-0.5
Therefore, y=20-x=20-4=16
You need 4 liters of 5% and 16 liters of 17.5% to achieve 20 liters of 15% acid solution