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Dawn has been using two bank accounts to save money for a car. the difference between account 1 and account 2 is $100. if she uses 3/8 of account 1 and 7/8 of account 2, dawn will have a down payment of $2,000. solve the system of equations to find the total amount of money dawn has in each account. a – b = 100 a b = 2,000 dawn has $ in account 1 and $ in account 2.

Verified Answer :

Answer

Dawn has $1670 in account 1 and $1570 in account 2

Explanation

Let \(a\) be the amount of money in account 1

Let \(b\) be the amount of money in account 2

We know from our problem that  the difference between account 1 and account 2 is $100, so:

@@MATH_TOKEN_2@@ equation (1)

We also know that if she uses 3/8 of account 1 and 7/8 of account 2, dawn will have a down payment of $2,000, so:

\(\frac{3}{8} a+\frac{7}{8} b=2000\) equation (2)

Now let's solve our system of equations (1) and (2) step by step:

Step 1. Solve for \(a\) in equation (1)

\(a-b=100\)

\(a=100+b\) equation (3)

Step 2. Replace equation (3) in equation (2) and solve for \(b\)

\(\frac{3}{8} (100+b)+\frac{7}{8} b=2000\)

\(37.5 +\frac{3}{8} b+\frac{7}{8} b=2000\)

\(\frac{5}{4} b=1962.5\)

\(b=1570\) equation (4)

Step 3. Replace equation (4) in equation (3)

\(a=100+1570\)

\(a=1670\)

Dawn has $1670 in account 1 and $1570 in account 2

Answer:

Dawn has $1670 in account 1 and $1570 in account 2

Step-by-step explanation:

Ed2020