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4 years ago

The sum of four times a number and one is equal to the difference of twice the number and 9

Mathematics

1 answer:

andrezito [222]4 years ago

3 0

(4n+1)=(2n-9)

the sum of four times a number and one is equal to the difference of twice the number and 9

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Cost to store: $75 Percent of Markup: Selling price: $112.50

AlekseyPX

Answer:

15%

Step-by-step explanation:

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3 years ago

#3 The sales tax on a $20 shirt was 9%.

saveliy_v [14]

Answer:

Step-by-step explanation:

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3 years ago

Geometric mean Pls help thank u

quester [9]

Answer:

Step-by-step explanation:

1). Geometric mean of a and b = $\sqrt{a\times b}$

Therefore, geometric mean of 2 and 50 = $\sqrt{2\times 50}$

= 10

2). By geometric mean theorem,

$\frac{JM}{KM}=\frac{KM}{ML}$

$\frac{6}{e}=\frac{e}{24}$

e² = 6 × 24

e = √144

e = 12

Similarly, $\frac{JL}{KJ}=\frac{KJ}{JM}$

$\frac{6+24}{d}=\frac{d}{6}$

d² = 6 × 30

d = √180

d = 6√5

And $\frac{JL}{KL}=\frac{KL}{ML}$

$\frac{6+24}{c}=\frac{c}{24}$

c² = 30 × 24

c = √720

c = 12√5

3 0

3 years ago

1/5 of the shoes in a factory are green. If you pick a shoe, replace it, pick another shoe and replace it, and pick a third shoe

Ne4ueva [31]

Answer:

The probability that none of the three shoes selected are green = 64/125

Step-by-step explanation:

If we have 1/5 of shoes being green, then the number of non-green shoes = 1-1/5 = 4/5

Now, this is a probability with replacement.

probability of the first shoe since it’s not green = 4/5

probability of second shoes since it’s not green = 4/5

probability of third shoe since it’s not green = 4/5

Now, the probability that none of the shoes are green = 4/5 * 4/5 * 4/5 = 64/125

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3 years ago

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Mkey [24]

Answer:M(-0,5;0)

Step-by-step explanation:

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2 years ago