Answer: There were 7 children
Step-by-step explanation:
Let's use <em>x </em>to represent the children and <em>y </em>to represent the adults.
We know they combine to make a group of 25 people so x+y=25
We also know that they paid $201 and that there is $3 per child and $10 for adults so 3x+10y=201
I will solve by substitution.
Solve for y in the first equation
Sub in our value for y into the other equation and solve for x
Step 1) Simplify
Step 2) Subtract 250 from both sides
Step 3) Divide both sides by -7
Answer:
length x width x height
Step-by-step explanation:
If Daniella is paying 15% of her salary as income tax, the other 85% should be her take-home pay. In this case, Daniella
wants to have at least $51,000 as take-home pay.
0.85 (Salary) = $51,000
Salary = $51,000 / 0.85
Salary = $60,000
Therefore Daniella should have at least a salary of $60,000.
See the attached picture for the answer and steps:
Each term is minused 6
so
f(n)=f(n-1)-6
where f(1)=5