The amount invested in the account that yields 7% interest is $4000.
The amount invested in the account that yields 12% interest is $1000.
<h3>What are the linear equations that represent the question?</h3>
a + b = 5000 equation 1
0.07a + 0.12b = 400 equation 2
Where:
a = amount invested in the account that yields 7% interest.
b = amount invested in the account that yields 12% interest.
<h3>How much is invested at each rate?</h3>
Multiply equation 1 by 0.07
0.07a + 0.07b = 350 equation 3
Subtract equation 3 from equation 2
0.05b = 50
b = 50 / 0.05
b = 1000
Subtract 1000 from 5000: 5000 - 1000 = 4000
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Answer:
Step-by-step explanation:
area becomes 2²=4 times.
2/3 of 8 miles is 5 and 1/3 miles. So they walked about 5 and 1/3 miles there.
3.05 x 10³ is already written in scientific notation.
The same number written in standard form is 3,050 .
Answer:
2x+6 since the +3 and -3x cancel each other out your only left with 2x
