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3 years ago

Please help. Will give brainliest and would really appreciate it.

Mathematics

1 answer:

kondor19780726 [428]3 years ago

3 0

Answer:

x≠3

Step-by-step explanation:

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Answer:

2(x+6) = 2(6+13x)

2x+12 = 12+26x

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3 years ago

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What is the circumference of a circle if the diameter is 12 in

Delvig [45]

Answer:
______________________________________________________
The circumference (in terms of "π") is: " 12π in. " .
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The circumference (using "3.14" as an approximation for "π") is: " 37.7 in. " .
__________________________________________________________

Circumference, "C" = π* d ; (d = diameter = 12 in.);

C = π* d = π * 12 in. = " 12π in. " (in terms of "π").

Or, using the approximation, "π ≈ 3.14" ;

C = 3.14 * (12 in.) = 37.68 inches ; round to: " 37.7 in. " .
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3 years ago

Ralph earns 72,000 annually as an architect and is paid semimonthly

professor190 [17]

12,000 every pay check

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4 years ago

Evelyn went shopping with half of her monthly allowance. She spent $39.95 on a dress and 3/7 of the remainder on some accessorie

Gnoma [55]

Answer:

Evelyn monthly allowance is $187.

Step-by-step explanation:

Let the monthly allowance be 'x'.

Given:

Money taken with for shopping = $\frac{x}{2}$

Money spent of dress = $39.95

Also Given:

3/7 of the remainder on some accessories.

Money spent on accessories is equal to $\frac{3}{7}$ times Difference of monthly allowance and Money spent of dress.

framing in equation form we get;

Money spent on accessories = $\frac{3}{7}\times(\frac{x}{2}-39.95)$

Also Given:

Money left after shopping = $30.60

Now we know that;

Money taken with for shopping is equal to sum of Money spent of dress and Money spent on accessories and Money left after shopping.

framing in equation form we get;

$\frac{x}{2}=39.95+\frac{3}{7}(\frac{x}{2}-39.95)+30.60\\\\\frac{x}{2}=39.95+\frac{3x}{14}- 17.12 +30.60$

Combining like terms we get;

$\frac{x}{2}-\frac{3x}{14}=39.95-17.12+30.60\\\\\frac{x}{2}-\frac{3x}{14}= 53.43$

Now we will make denominator common using L.C.M

$\frac{x\times 7}{2\times7}-\frac{3x\times1}{14\times1}= 53.43\\\\\frac{7x}{14}-\frac{3x}{14}= 53.43\\\\\frac{7x-3x}{14}=53.43\\\\\frac{4x}{14}=53.43\\\\4x=53.43\times14\\\\x= \frac{53.43\times14}{4} = \$187$

Hence Evelyn monthly allowance is $187.

3 0

4 years ago