The total money earned by Jenny is \(\boxed{\bf \$\ 127.05}\).
Further explanation
Multiplication is a arithmetic operation such that two real numbers are performed in such a way that they derive a third number called product.
Procedure used:
The following steps are involved to find the value of \(y\text{ unit}\) where \(y\) is any real number.
1) If one unit is equal to \(x\) then multiply \(y\) with \(x\).
2) The resultant number would be \(xy\) is the value of \(y\text{ unit}\).
Given:
Jenny charges \(\$\ 9.15\) an hour to babysit toddlers and \(\$\ 7.45\) an hour to babysit school-aged children. She babysat toddlers for \(9\text{ hours}\) and school aged children for \(6\text{ hours}\).
Calculation:
Step 1: Jenny earns through babysit toddlers.
If jenny charges \(\$\ 9.15\) an hour to babysit toddlers and she does this job for \(9\text{ hours}\).
The earning money from babysit toddlers using above procedure can be calculated as follows:
\(\begin{aligned}a&=9.15\cdot 9\\&=82.35\end{aligned}\)
Therefore, jenny earns \(\$\ 82.35\) by babysit toddlers.
Step 2: Jenny earns through school aged children.
If jenny charges \(\$\ 7.45\) an hour to babysit school aged children and she does this job for \(6\text{ hours}\).
The earning money from babysit school aged children using above procedure can be calculated as follows:
\(\begin{aligned}b&=7.45\cdot 6\\&=44.7\end{aligned}\)
Therefore, Jenny earns \(\$\ 44.7\) by babysit school aged children.
Step 3: Total amount earn by Jenny.
The total earning is the sum of earning through babysit toddlers and babysit school aged children.
The total earning is calculated as follows:
\(\begin{aligned}\text{Total money}&=82.35+44.7\\&=127.05\end{aligned}\)
Thus, total money earned by jenny is \(\boxed{\bf \$\ 127.05}\).
Learn more
1. Problem on the whole numbers are positive integers https://brainly.com/question/1852063.
2. Problem on the adding and simplifying the numbers https://brainly.com/question/894273.
3. Problem on the general form of the equation of the circle https://brainly.com/question/1506955.
Answer details:
Grade: Junior school
Subject: Mathematics
Chapter: Multiplication
Keywords: Jenny, babysit, toddlers, school aged children, hour, multiplication, addition, total earning, real numbers, unit, sum, operation, money.
