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2 years ago

9

How do you times unlike fractions ??

1 answer:

dlinn [17]2 years ago

8 0

With any fraction, no matter what its denominator (bottom part), you multiply the numerators (tops) by each other and the denominators (bottoms) by each other.

For example,

$\dfrac{5}{4} * \dfrac{8}{7} = \dfrac{(5)(8)}{(4)(7)} = \dfrac{40}{28} = \dfrac{10}{7}$

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Pleas help me find the answer and show the work to this question

lions [1.4K]

Answer:

$Leg\ 1 = 8$

$Leg\ 2 = 15$

Step-by-step explanation:

Given: See Attachment

Required

Determine the length of the legs

To do this, we apply Pythagoras theorem.

$Hyp^2 = Adj^2 + Opp^2$

In this case:

$17^2 = x^2 + (2x- 1)^2$

Open Bracket

$17^2 = x^2 + 4x^2- 2x-2x + 1$

$17^2 = 5x^2 - 4x + 1$

$289= 5x^2 - 4x + 1$

Collect Like Terms

$5x^2 - 4x + 1 - 289 = 0$

$5x^2 - 4x - 288 = 0$

Solving using quadratic formula:

$x = \frac{-b\±\sqrt{b^2 - 4ac}}{2a}$

So:

$x = 8$ or $x = -7.2$

Since, x can't be negative, then:

$x = 8$

One of the leg is:

$Leg\ 1 = x$

$Leg\ 1 = 8$

$Leg\ 2 = 2x - 1$

$Leg\ 2 = 2*8 - 1$

$Leg\ 2 = 16 - 1$

$Leg\ 2 = 15$

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2 years ago

Julie is drawing a map of the town. She knows that City Hall is 3 miles

Ainat [17]

1.5 inches should be right

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2 years ago

A recipe called for 2/9 cup of chopped tomatoes and 4/7 cup of diced tomatoes. In total how many cups of tomatoes did the recipe

kolbaska11 [484]

50/63

You add them

.....
........

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2 years ago

Read 2 more answers

Please help due in 10 minutes

vovangra [49]

2x + 46 is your answer

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1 year ago

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Solve and show your work please!x+7=2(3x-4)

Brrunno [24]

x + 7 = 2(3x - 4) Remove the brackets

x + 7 = 2*3x - 4*2

x + 7 = 6x - 8 Subtract 7 from both sides.

x + 7 - 7 = 6x - 8 - 7

x = 6x - 15 Subtract 6x from both sides

x - 6x = - 15

-5x = - 15 Divide by -5

-5x/-5 = -15/-5

x = 3

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2 years ago