"Education Savings" PPT courseware of linear equation in one variable

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"Education Savings" PPT courseware of linear equation in one variable

create scenarios

1. Xiaoying’s parents saved a three-year education savings for her, initially depositing 1,000 yuan. So how much money can you withdraw after three years?

Solution: 1000+1000×2.70%×3=1081 (yuan)

Or: 1000 (1+2.70%×3)=1081 (yuan)

2. If Xiaoying’s parents withdraw 5,000 yuan three years later, can you find out what the principal is?

Solution: Suppose you start depositing x yuan. According to the meaning of the question, we have

(1+2.70%×3)x=5000

The solution is x ≈ 4625.3 yuan

Therefore, I started depositing the principal of 4625.3 yuan.

Related concepts:

Principal: Money deposited by the customer into the bank.

Interest: The fee a bank pays its customers.

Sum of principal and interest: The sum of principal and interest.

Period: The time of deposit.

Interest rate: The ratio of interest to principal in each period.

Interest = principal × interest rate × number of periods × (1-20%)

Education savings: Interest = principal × interest rate × number of periods

Review summary:

1. Use linear equations of one variable to solve problems in savings, credit, etc.

2. An effective way to convert practical problems into mathematical problems is to use tables to convert literal language into mathematical language.

3. Utilize the calculator to increase the speed and accuracy of calculations.

1. Mr. Zhang deposited 2,000 yuan in the bank with a deposit period of 2 years and a known annual interest rate of 2.25%. After two years, what will be the sum of principal and interest after deducting 20% ​​interest tax?

Interest: 2000×2.25%×2=90 (yuan)

Interest tax: 90×20%=18 (yuan)

Sum of principal and interest: 2000+90-18=2072 (yuan)

Keywords: linear equation of one variable courseware, education savings courseware, Beijing Normal University edition seventh grade mathematics first volume PPT courseware, seventh grade mathematics slide courseware download, linear equation of one variable PPT courseware download, education savings PPT courseware download, .ppt format

For more information about the PPT courseware "Education Savings with a Linear Equation of One Yuan", please click the "Education Savings with a Linear Equation ppt" tag.

"Education Savings" Univariate Linear Equation PPT Courseware 2:

"Education Savings" Univariate Square Equation PPT Courseware 2 Terminology in savings issues: principal, interest, sum of principal and interest, number of periods, interest rate; Calculation formula: Sum of principal and interest = principal + interest interest = principal interest rate period deposit time The number of periods is called the interest and principal in each period..

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Update Time: 2024-11-19

This template belongs to Mathematics courseware Beijing Normal University seventh grade first volume mathematics industry PPT template

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