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3 years ago

5

good stuff is giving away free pens to each of he first people who come in the store today. in the first hour, they gave away 25

% of the pens. how many is this?

1 answer:

pychu [463]3 years ago

3 0

They gave away 50 pens

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In a right –angled triangle, the length of hypotenuse and shorter sides are 13 cm and 5 cm respectively. Work out the other side

stellarik [79]

Answer: The other side is 12 cm.

Step-by-step explanation:

$a^{2} + b^{2} = c^{2}$
$a^{2} + (5)^{2} = (13)^{2}$
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$a^{2} = 144$
$a = \sqrt{144}$
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3 years ago

Verify (−25) x [15 + (−5)] = [(−25) x 15] + [(−25) x (−5)

KengaRu [80]

Answer:

Take L.H.S and the R.H.S

Step-by-step explanation:

Taking L.H.S

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3 years ago

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3 years ago

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3 years ago

Assume that two marbles are drawn without replacement from a box with 1 blue, 3 white, 2 green, and 2 red marbles. Find the prob

tatuchka [14]

Answer:

second marble is blue and first marble is white is $\frac{1}{7}$

Step-by-step explanation:

given data

two marbles

box = 1 blue, 3 white, 2 green, and 2 red marbles

solution

we get here second marble is blue and given that the first marble is white

= P(3c1 × 1c1) ÷ P(3c1 × 7c1) ................................................1

= 1c1 ÷ 7c1

= 1 ÷ 7

so second marble is blue and first marble is white is $\frac{1}{7}$

7 0

3 years ago