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3 years ago

11

Suppose the population of a certain city is 4251 thousand. It is expected to decrease to 3360 thousand in 50 years. Find the per

cent decrease.

1 answer:

jonny [76]3 years ago

5 0

Answer:

22.77%

Step-by-step explanation:

4351-3360 / 4351 x 100 = 22.77%

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A carpenter makes and sells rocking chairs. The material for each chair costs $22.50. The chairs sell for $75 each. If the charp

Lady_Fox [76]

Answer:

About 6 chairs

Step-by-step explanation:

75x=22.50+420

75x=442.5

x=5.9

So about 6 chairs

4 0

3 years ago

Events A1, A2 and A3 form a partiton of the sample space S with probabilities P(A1) = 0.3, P(A2) = 0.5, P(A3) = 0.2.

timurjin [86]

Answer:

Step-by-step explanation:

Given that events A1, A2 and A3 form a partiton of the sample space S with probabilities P(A1) = 0.3, P(A2) = 0.5, P(A3) = 0.2.

i.e. A1, A2, and A3 are mutually exclusive and exhaustive

E is an event such that

P(E|A1) = 0.1, P(E|A2) = 0.6, P(E|A3) = 0.8,

$P(E) = P(A_1E)+P(A_2E)+P(A_3E)\\= \Sigma P(E/A_1) P(A_1) \\= 0.1(0.3)+0.5(0.6)+0.8(0.2)\\= 0.03+0.3+0.16\\= 0.49$

$P(A_1/E) = P(A_1E)/P(E) = \frac{0.3(0.1)}{0.49} \\=0.061224$

$P(A_2/E) = P(A_2E)/P(E) = \frac{0.5)(0.6)}{0.49} \\=0.61224$

$P(A_3/E) = P(A_3E)/P(E) = \frac{0.2)(0.8)}{0.49} \\=0.3265$

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3 years ago

Help pls im taking a test and I need help on this the answer choices are

siniylev [52]

Answer:

b. K,M,J,L

Step-by-step explanation:

From weakest to strongest values:

-0.78, -0.15, 0.35, 0., 67

Weakest to strongest data sets:

K, M, J, L

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2 years ago

Kamilah noticed that three different-sized boxes of the same cookies were on sale at a grocery store. The 425 g box was on sale

KengaRu [80]

Answer:

740 g box for $4.88, hope this helps

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2 years ago

What characteristics help you tell the difference between a rhombus and a rectangle? explain

bulgar [2K]

A Rectangle Is A 4 Sided Closed Figure That Has 4 Right Angles, While A Rhombus Does Not Have Any Right Angles

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3 years ago

Read 2 more answers