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Amiraneli [1.4K]

3 years ago

14

A carton contains 20 shirts , of which q are made of pure cotton. After 4 more pure cotton shirts are added to the carton, the p

robability of drawing a pure cotton shirt becomes 3/4 , find the value of q.

1 answer:

MaRussiya [10]3 years ago

7 0

Answer:

listen when in doubt go with choice 3.

Step-by-step explanation:

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Which are solutions of x2 + 5x = 2? Check all that apply.

ANEK [815]

we have

$x^{2} +5x=2$

Complete the square. Remember to balance the equation by adding the same constants to each side

$x^{2} +5x+2.5^{2}=2+2.5^{2}$

$x^{2} +5x+6.25=2+6.25$

$x^{2} +5x+6.25=8.25$

Rewrite as perfect squares

$(x+2.5)^{2}=8.25$

Square Root both sides

$(x+2.5)=(+/-)\sqrt{8.25}$

$x=(+/-)\sqrt{8.25}-2.5$

$\sqrt{8.25}=\frac{\sqrt{33}}{2}$

substitute

$x=(+/-)\frac{\sqrt{33}}{2}-2.5$

therefore

<u>the answer is</u>

the solutions are

$x1=-2.5+\frac{\sqrt{33}}{2}$ or $x1=\frac{-5+\sqrt{33}}{2}$

$x2=-2.5-\frac{\sqrt{33}}{2}$ or $x2=\frac{-5-\sqrt{33}}{2}$

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3 years ago

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What is the sum of 93+(68+7) using

stich3 [128]

Answer:

75

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168

Step-by-step explanation:

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A 10 ft vertical post casts a 16 in shadow At the same time a nearby cell phone tower cast a 124 ft shadow

chubhunter [2.5K]

10/16=x/124
X=(124)(10)/(16)=1240/16=80

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3 years ago

PLEASE HELP! Identify the rule for the function table.

fgiga [73]

Hello!

You have to find what the rule is

12/24 = 0.5
6/12 = 0.5
-6/-12= 0.5

They multiply x by 0.5

the rule is multiply x by 0.5 or y = 0.5x

Hope this helps!

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Lea is making a mosaic picture that is 3/4 foot tall and 11/12 foot wide what is the area of her mosaic

Fudgin [204]

Not enough info. But assuming it’s a rectangular, area = length * width
3/4*11/12 = 33/48 = 11/16 square feet

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3 years ago