3 years ago

Solve for x show work

Mathematics

2 answers:

patriot [66]3 years ago

6 0

Answer:

x = 14

Step-by-step explanation:

The sum of the interior angles of a six sided figure is 720

10x + 8x-16+12x-8 +7x+2 +9x+4 +6x+10 = 720

Combine like terms

52x-8=720

Add 8 to each side

52x-8+8 = 720+8

52x = 728

Divide by 52

52x/52 = 728/52

x = 14

TiliK225 [7]3 years ago

6 0

Step-by-step explanation:

here's the answer for thy question

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Answer:

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Step-by-step explanation:

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3 years ago

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4 years ago

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A college student earned $7200 during summer vacation working as a waiter in a restaurant on the boardwalk at the beach. The stu

Agata [3.3K]

Answer: The amount invested at 10% was $3200.

Step-by-step explanation:

Since we have given that

Principal amount = $7200

Rate of interest are 10% and 9%.

Total interest = $680

Let the amount invested on 10% be 'x'.

Let the amount invested on 9% be '7200-x'.

According to question, we get that

$\dfrac{x\times 10}{100}+\dfrac{(7200-x)\times 9}{100}=680\\\\10x+64800-9x=680\times 100\\\\x+64800=68000\\\\x=68000-64800\\\\x=\$3200$

Hence, the amount invested at 10% was $3200.

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4 years ago

Solve for x *show work*​

Solve for x show work