Question 5 options:
Use the five-step thinking plan to help you solve this problem.
Jill has $8.75. Jack has three times as much as Jill, but he spent $5.00 to buy a book. How much money does Jack have?
Step 1: Understand the problem
- Jill has $8.75.
- Jack has three times as much money as Jill.
- Jack spent $5.00 to buy a book.
- We need to find out how much money Jack has.
Step 2: Devise a plan
- Since Jill has $8.75 and Jack has three times as much money, we need to multiply $8.75 by 3.
- After that, we need to subtract $5.00 from the result to account for the book purchase.
Step 3: Carry out the plan
- Multiply $8.75 by 3: $8.75 x 3 = $<<8.75*3=26.25>>26.25
- Subtract $5.00: $26.25 - $5.00 = $<<26.25-5=21.25>>21.25
Step 4: Check the solution
- To check if our solution is correct, we can verify that Jack's money is indeed three times Jill's original amount minus the book expenditure.
- Three times $8.75 is $26.25, and subtracting $5.00 gives us $21.25.
Step 5: Reflect on the solution
- Jill has $8.75.
- After spending $5.00, Jack has $21.25.
To solve this problem using the five-step thinking plan, follow these steps:
Step 1: Understand the problem
- Jill has $8.75.
- Jack has three times as much as Jill.
- Jack spent $5.00 to buy a book.
- We need to find out how much money Jack has.
Step 2: Make a plan
- Since we know that Jack has three times as much money as Jill, we can find Jill's money amount and then multiply it by three.
- To find Jill's money amount, we can subtract the amount Jack spent on the book ($5.00) from Jill's total money ($8.75) and then divide the result by three.
Step 3: Solve the problem
- Subtract the amount Jack spent ($5.00) from Jill's total money ($8.75):
$8.75 - $5.00 = $3.75
- Divide the result by three to find Jack's money amount:
$3.75 / 3 = $1.25
- So, Jack has $1.25.
Step 4: Check the answer
- Jack initially had three times as much money as Jill, which was $1.25.
- Since Jack spent $5.00 on a book, he should have $1.25 - $5.00 = -$3.75 remaining.
- Since negative money doesn't make sense in this context, we should double-check our calculations.
- There appears to be a mistake in our calculations. Let's go back to Step 3 and recalculate.
Step 3 (revised): Solve the problem
- Since Jack spent $5.00 on a book, we need to subtract it from Jill's total money first:
$8.75 - $5.00 = $3.75
- To find Jack's money amount, we can multiply Jill's money amount by three:
$3.75 * 3 = $11.25
- So, Jack has $11.25.
Step 4 (revised): Check the answer
- Jack initially had three times as much money as Jill, which was $11.25.
- Since Jack spent $5.00 on a book, he should have $11.25 - $5.00 = $6.25 remaining.
- This seems plausible, so our revised calculations appear to be correct.
Step 5: Answer the question
- Jack has $11.25.
To find out how much money Jack has, we can follow the five-step thinking plan:
Step 1: Understand the question.
The question asks us to determine how much money Jack has after buying a book.
Step 2: Identify the information given.
According to the problem, Jill has $8.75, and Jack has three times as much as Jill. Additionally, Jack spent $5.00 on a book.
Step 3: Plan and carry out the strategy.
To find out how much money Jack has, we need to calculate three times Jill's amount and then subtract the amount spent on the book.
Jill's money: $8.75
Jack's money: 3 x Jill's money
Amount Jack spent: $5.00
Step 4: Analyze the information.
To calculate Jack's money, we need to multiply Jill's money by 3 and then subtract the amount he spent on the book.
Step 5: Evaluate the answer.
By performing the calculations, we can determine Jack's money.
Now let's apply the formula:
Jack's money = (Jill's money x 3) - Amount spent
= ($8.75 x 3) - $5.00
= $26.25 - $5.00
= $21.25
Therefore, Jack has $21.25.