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3 years ago

A car rental company charges rs 500 a day

Mathematics

1 answer:

Montano1993 [528]3 years ago

8 0

Answer:

total bill=1644

let he drives x kilometer

then

500*2+8*x=1644

1000+8x=1644

8x= 1644-1000

8x= 644

x= 644/8=80.5 km

Step-by-step explanation:

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4 years ago

Is x=3 a solution for the equation: 3x + 7 = 13<br> Why or why not ?

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No.

Step-by-step explanation:

There are two different ways to do this - solve for x in the given equation or substitute the value for x and see if you get a true statement.

3x + 7 = 13 subtract 7 from both sides

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3(3) + 7 = 13

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Step-by-step explanation

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3 years ago

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Sergeu [11.5K]

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An executive invests $26,000, some at 7% and some at 5% annual interest. If he receives an annual return of $1580, how much is i

Dmitriy789 [7]

Answer:

He invest $14000 for 7% and $12000 for 5%.

Step-by-step explanation:

Consider the provided information.

Let executive invest x for 7% and 26000-x for 5%.

The annual return is $1580.

Therefore, the required equation is:

$\frac{7}{100} x+\frac{5}{100}(26000-x)=1580$