Answer:
y = 36
Step-by-step explanation:
Given y varies directly as z and inversely as x then the equation relating them is
y = 
← k is the constant of variation
To find k use the condition y = - 18, z = 3 when x = 6 , then
- 18 = 
( multiply both sides by 6 )
- 108 = 3k ( divide both sides by 3 )
- 36 = k
y = 
← equation of variation
When x = 5 and z = - 5, then
y = 
= 
= 36
Answer:
The principal amont was $35,000
Step-by-step explanation:
This is a simple interest problem.
The simple interest formula is given by:
In which E are the earnings, P is the principal(the initial amount of money), I is the interest rate(yearly, as a decimal) and t is the time.
In this problem, we have that:
We want to find P. So
The principal amont was $35,000
Answer:
The values are calculated with the help of table.
Step-by-step explanation:
We are given the following information in the question:
A table is shown showing trees on two different plots of land which are tested for disease.
Tree: 1 2 3 4 5 6 7
Plot: A A B B B A B
Disease: Y N Y Y Y N N
We have to find:
Calculating from the table, we can fill the values as:
Plot A Plot B
Disease Present 1 3
Disease not Present 2 1
