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SVEN [57.7K]
3 years ago
10

Create your OWN word problem Must include:

Mathematics
1 answer:
maria [59]3 years ago
3 0

Answer:

Johnny has 1000$ to spend. He wants to split it between games and cds. Cds are 8$ for one and games are 10$ write a system of equations to get the amount of cds and games he can get without going over

Step-by-step explanation:

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At the scene of a crime, the police have found a blood stain, a footprint, and some threads from a fabric. All are presumed to h
zubka84 [21]

Answer:

There is a 0.175% chance of finding such a person who has all three characteristics.

Out of 4,000 people, 7 people would likely to match all three characteristics.

Step-by-step explanation:

A crime has been committed and after analyzing the evidence, police has found out that:

  1. The criminal's blood type is a type found in only 10% of the population.
  2. The criminal's footprint is a size 13 men's shoe and only 7% of the population wears such shoe size.
  3. Only 25% of the population owns clothing made from a fabric that matches the thread samples found at the scene.

We required to find out the probability of selecting a random person who would match all of these characteristics.

Since it is given that the three characteristics are independent of each other then the required probability is  

P(all 3 characteristics) = P(1st characteristic)*P(2nd characteristic)*P(3rd characteristic)

P(all 3 characteristics) = (10/100)*(7/100)*(25/100)

P(all 3 characteristics) = 1750/1,000,000

P(all 3 characteristics) = 7/4000

P(all 3 characteristics) = 0.00175

P(all 3 characteristics) = 0.175%

So out of 4,000 people, 7 people would likely to match all three characteristics.

or

There is a 0.175% chance of finding such a person who has all three characteristics

3 0
3 years ago
A. hellen raised 12$ for the food bank last year and she raised 6 times as much money this year how much money did she raise thi
ruslelena [56]

Answer:

A. 72

B. 3

C. 135

Step-by-step explanation:

A. 12 x 6 = 72

B. 15 x 3 = 45 so Nina raise 3x more money than Sandra

C. 45 x 3 = 135

6 0
3 years ago
Write the equation of the line, in SLOPE-INTERCEPT FORM, that has a slope of -2 and passes through the point (20, 40)
solmaris [256]

Answer:

y=-2x+80

Step-by-step explanation:

40=(-2*20)+b

40=-40+b

80=b

y=(-2*20)+80

y=-40+80

y=40

5 0
3 years ago
Can someone please help.​
kobusy [5.1K]

Answer:

5

Step-by-step explanation:

8 0
1 year ago
Read 2 more answers
Given the system of linear equations:
IgorLugansk [536]

Answer:

(1,6)

Step-by-step explanation:

To solve by substitution, rearrange -x+y=5 to y=x+5 and substitute it into 4x+y=10.

4x + (x+5) = 10

4x+x+5=10

5x+5=10

5x=5

x=1

Now substitute x = 1 back in to find y.

y= (1) + 5

y=6

Solution is (1,6)

Verify substituting both values into each equation in to verify true.

-x+y=5

-(1)+6 = 5

-1+6=5

5=5 True

4(1)+6=10

4+6=10

10=10 True

7 0
3 years ago
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