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3 years ago

What is the reciprocal of 3 and 1/5

2 answers:

7 0

To find the reciprocal of 3 and 1/5, first you have to put it into a improper fraction.

3=5/5*3=15/3
15/3+1/5=16/3

3 1/5=16/3

To find the reciprocal, you simply flip the top and the bottom.
3/16

Hope this helps!
Your fortune is "Your present plans are going to succeed."

Vaselesa [24]3 years ago

4 0

1/3 and 5 because 3/1 is three and 1/3 is the opposite while 1/5 is 5/1 which is 5.

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The perimeter of a rectangle is 102 cm. If the length is 15 cm less than twice the width , what are the dimensions?

lianna [129]

Let the length be $\ell$ and the width be $w$ . Now, write the length in terms of the width. "The length is 15 cm. less than twice the width" in the form of an equation is

$\ell = 2w - 15 cm.$

Let's plug that into the equation for the perimeter now. The perimeter of a rectangle is $2 \ell + 2w$ , so the equation for the perimeter of this rectangle is

$2 \ell + 2w = 102 cm.$

Plugging in the length in terms of width and solving for the width, we get

$2(2w - 15 cm.) + 2w = 102 cm.$
$6w - 30 cm. = 102 cm.$
$6w = 132 cm.$
$\bf w = 22 cm.$

To find the length, we just have to plug in the width into the equation we wrote for the length in terms of the width:

$\ell = 2w + 15 cm.$
$\ell = 2(22 cm.) - 15 cm.$
$\bf \ell = 29 cm.$

7 0

3 years ago

Select the correct answer.<br> Find the inverse of function f.<br> f(x) = 1/2x + 7

timofeeve [1]

Answer:

f'(x)= 2x - 14

Step-by-step explanation:

change f(x) to y y = 1/2x + 7

switch x and y x = 1/2y + 7

multiply everything by 2 to cancel the denominator 2x = y + 14

solve for y 2x - 14 = y

then change y to f'(x) f'(x) = 2x - 14

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4 years ago

Which of the 5 is the answer

ahrayia [7]

Answer:

I think Letter E

Step-by-step explanation:

Because all r negative numbers

5 0

3 years ago

2) Select one of your sides.

svlad2 [7]

Answer:

Step-by-step explanation:

nachos=3 =100%

1.5=50%

0.50=25%

0.25=12.5%

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3 years ago

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just olya [345]

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3 years ago