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vivado [14]
2 years ago
9

Thomas invested $8,500 for one year. Part of the money was invested at6% and the rest at 9%. The total interest earned was $667.

50. How much did Thomas invest at the 6% rate?
Mathematics
1 answer:
oee [108]2 years ago
4 0
Okay so say that x=amount invested with 6% and y=amount invested with 9%
x+y=8,500 so > x=8500-y
6%=0.06        <span>9%=0.09</span>
0.06x +0.09y=667.5 (Substitute in x=8500-y so only numbers and y)
0.06(8500-y)+0.09y=667.5 (expand brackets)
510-0.06y+0.09y=667.5 (-510)
0.03y=117.5 (/0.03)
$3916.67=Y  ->9%
X=8500-Y 
x=$4583.33 ->6%
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<u>Answer:</u>

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Substituting the given values

SP = \mathrm{MP}\left(1-\frac{20}{100}\right)

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6 0
2 years ago
The area of a rectangular banquet call is 7400 ft.². The length of one side of the hall is 82 feet. Explain how you can use comp
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Answer:

Compatible width of rectangular banquet hall could be 90 feet approximately.

Step-by-step explanation:

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Now Area of rectangle is equal to length times width.

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82 \times width = 7400\\\\width = \frac{7400}{82} = 90.2439

Now by definition of Compatible numbers which state that:

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Elisse has 20 meters of ribbon how many 15 cm of ribbon can be cut from it
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Answer:

133 pieces of 15cm can be cut from the ribbon.

Step-by-Step Explanation:

Length of ribbon = 20 meters

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133 pieces of 15cm can be cut from the ribbon.

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