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3 years ago

Tell which is the better buy. Show your work.

Mathematics

1 answer:

kramer3 years ago

7 0

Answer:

this is a bit incoherent, could you please upload a picture?

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Give examples of linear equations in one variable with one solution, infinitely many solutions, or no solutions. Show which of t

Arlecino [84]

Idk that answer i just wants to finish mi profile

7 0

3 years ago

How to write 5 and 800 ten thousand

Nikolay [14]

How to write 5 and 800 ten thousand?

5 = five
800 = eight-hundred

Five and eight hundred then thousand.

6 0

3 years ago

The temperature at noon was -6°c.By midnight, the temperature dropped 9°c.which exprssion represent the temperature at midnight

vfiekz [6]

Answer:

-6 + 3 = -9

Step-by-step explanation:

Hope this helped

6 0

3 years ago

An urn contains 8 red chips, 10 green chips, and 2 white chips. A chip is drawn and replaced, and then a second chip is drawn.

Harlamova29_29 [7]

Answer:

(A) 0.04

(B) 0.25

Step-by-step explanation:

Let R = drawing a red chips, G = drawing green chips and W = drawing white chips.

Given:

R = 8, G = 10 and W = 2.

Total number of chips = 8 + 10 + 2 = 20

$P(R) = \frac{8}{20}=\frac{2}{5}\\P(G)= \frac{10}{20}=\frac{1}{2}\\P(W)= \frac{2}{20}=\frac{1}{10}$

As the chips are replaced after drawing the probability of selecting the second chip is independent of the probability of selecting the first chip.

(A)

Compute the probability of selecting a white chip on the first and a red on the second as follows:

$P(1^{st}\ white\ chip, 2^{nd}\ red\ chip)=P(W)\times P(R)\\=\frac{1}{10}\times \frac{2}{5}\\ =\frac{1}{25} \\=0.04$

Thus, the probability of selecting a white chip on the first and a red on the second is 0.04.

(B)

Compute the probability of selecting 2 green chips:

$P(2\ Green\ chips)=P(G)\times P(G)\\=\frac{1}{2} \times\frac{1}{2}\\ =\frac{1}{4}\\ =0.25$

Thus, the probability of selecting 2 green chips is 0.25.

(C)

Compute the conditional probability of selecting a red chip given the first chip drawn was white as follows:

$P(2^{nd}\ red\ chip|1^{st}\ white\ chip)=\frac{P(2^{nd}\ red\ chip\ \cap 1^{st}\ white\ chip)}{P (1^{st}\ white\ chip)} \\=\frac{P(2^{nd}\ red\ chip)P(1^{st}\ white\ chip)}{P (1^{st}\ white\ chip)} \\= P(R)\\=\frac{2}{5}\\=0.40$

Thus, the probability of selecting a red chip given the first chip drawn was white is 0.40.

6 0

3 years ago

Mr. Warren is planting two new trees this year. When purchased, the first tree is initially 3 feet tall and grows at a rate of 1

REY [17]

Answer:

2.4 years

equal height is 72 inches

Step-by-step explanation:

initial height of tree one = 36inches

initial height of tree two = 48inches

36 + 15x = 48 + 10x

15x = 12 + 10x

5x = 12

x = 2.4 years

7 0

3 years ago