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2 years ago

Kathy had $10 and gave half of it to her brother. She then gave a third of the remaining

Mathematics

1 answer:

liq [111]2 years ago

3 0

Kelly has $10

- half: $10 - 1/2 x $10

$10 - $5 = $5

- one third: $5 - 1/3 x $5

$5 - $1.6667... or $5 - $1 and 2/3 = $3.33... or $3 and 1/3 or $10/3

She will have left $3.33 left, or $3 and 1/3

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3 years ago

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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

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

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

Solving using quadratic formula:

$x = \frac{-b\±\sqrt{b^2 - 4ac}}{2a}$

So:

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Since, x can't be negative, then:

$x = 8$

One of the leg is:

$Leg\ 1 = x$

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2 years ago

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goldfiish [28.3K]

Answer:

y - 1 = $\frac{5}{3}$ (x - 2)

Step-by-step explanation:

The equation of a line in point- slope form is

y - b = m(x - a)

where m is the slope and (a, b) a point on the line

Here m = $\frac{5}{3}$ and (a, b) = (2, 1), thus

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3 years ago

0.05 is 1/10 the value of A. 5 B. 0.005 C. 0.5 D. 50

anastassius [24]

Answer:

Step-by-step explanation:

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2 years ago

Simplify the following: 3(-3 + 5x) -1 (4 - 4x)

Gnesinka [82]

3(-3 + 5x) -1 (4 - 4x)

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2 years ago