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3 years ago

1. 39 = 1 3/10b 2. 2/5g = 3/5

2 answers:

8 0

1. 39= 1 3/10b
⇒ 39= 13/10b
⇒ 39/ (13/10)= b
⇒ 30= b

2. 2/5g= 3/5
⇒ g= 3/5 / (2/5)
⇒ g= 3/2
⇒ g= 1 1/2

Final answer:
1. b= 30
2. g= 1 1/2

Crazy boy [7]3 years ago

5 0

1. the answer is b = 30 .... you first simply both sides of the equation then flip it then multiply both sides by 10/13

2. the answer is g = 3/2 ...... multiply both sides by 5/2

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PLEASE HELP!!!! WILL GIVE BARAINLYIST!!!!

Klio2033 [76]

Experimental probability = 1/5

Theoretical probability = 1/4

note: 1/5 = 0.2 and 1/4 = 0.25

=============================================

How I got those values:

We have 12 hearts out of 60 cards total in our simulation or experiment. So 12/60 = (12*1)/(12*5) = 1/5 is the experimental probability. In the simulation, 1 in 5 cards were a heart.

Theoretically it should be 1 in 4, or 1/4, since we have 13 hearts out of 52 total leading to 13/52 = (13*1)/(13*4) = 1/4. This makes sense because there are four suits and each suit is equally likely.

The experimental probability and theoretical probability values are not likely to line up perfectly. However they should be fairly close assuming that you're working with a fair standard deck. The more simulations you perform, the closer the experimental probability is likely to approach the theoretical one.

For example, let's say you flip a coin 20 times and get 8 heads. We see that 8/20 = 0.40 is close to 0.50 which is the theoretical probability of getting heads. If you flip that same coin 100 times and get 46 heads, then 46/100 = 0.46 is the experimental probability which is close to 0.50, and that probability is likely to get closer if you flipped it say 1000 times or 10000 times.

In short, the experimental probability is what you observe when you do the experiment (or simulation). So it's actually pulling the cards out and writing down your results. Contrast with a theoretical probability is where you guess beforehand what the result might be based on assumptions. One such assumption being each card is equally likely.

7 0

3 years ago

in 1990 there were about 5.4 billion people in the world. if the population has been growing at 1.95% per year, estimate the yea

kompoz [17]

Answer:

2011

Step-by-step explanation:

Here is the formula.

$A=P(1+r)^{n}$

A = Final Value

P = Starting Value

R = Rate

N = Time in Years

A = 8,000,000,000

P = 5,400,000,000

R = 0.0195

N = Time in Years

Solve for n.

20.35 Years from 1990; so sometime in 2011 the population would be 8 billion.

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2 years ago

Classify the following triangle as acute, obtuse, or right.<br>

S_A_V [24]

Where’s the triangle

3 0

3 years ago

HELP PLEASE!!!

lbvjy [14]

Answer:

Create equivalent expressions in the equation that all have equal bases, then solve for

Exact Form:

5/3

Decimal Form:

1.6

Mixed Number Form:

1 2/3

7 0

3 years ago

Read 2 more answers

Tell me what to put in each group.

erastova [34]

Answer:

{-6 , 7 , 1} {9 , -3 , -4} {5 , -8 , 4} --- 2, 2, 1

Step-by-step explanation:

Number 1: {-6 , 7 , 1} {9 , -3 , -4} {5 , -8 , 4} --- 2, 2, 1

Number 2: {-6 , -3 , 9} {4 , 7 , -8} {5 , 1 , -4} --- 0, 3, 2

Number 2: {-4 , 5 , 1} {7 , 4 , -8} {-6 , -3 , 9} --- 2, 3, 0

4 0

3 years ago