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3 years ago

Which is not a solution of 3x -5 <17

Mathematics

1 answer:

Dmitry [639]3 years ago

3 0

Answer:

x < 7 1/3

Step-by-step explanation:

3x -5 <17

add 5 to each side

3x-5+5 <17+5

3x<22

divide by 3

3x/3 < 22/3

x < 22/3

x < 7 1/3

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22% of the customers visiting the suit department of a certain store will purchase a suit, 30% will purchase a shirt and 28% wil

Ulleksa [173]

Answer:

If there are 1000 customers in the store one week, how many will purchase exactly one of these items

1000 CUSTOMERS*28%=280

Step-by-step explanation:

A The event that a persons buys a suit

B The event that a person buys a shirt

C The event that a person buys a tie

P(A)= 22%

P(B)= 30%

P(C)= 28%

P(AB)= 11%

P(AC)= 14%

P(BC)= 10%

P(ABC)= 6%

A u B u C Is the event that any item is bougth

AC u AC u BC Is the event that any two events occured

So the wanted probability is

P[(A u B u C )(AB u AC u BC)^c

P[(A u B u C )=P(AB)+ P(BC)+P(BC)

P[(A u B u C ) =0.22+0.30+0.28-0.11-0.14.-0.10+0.06

=0,51

0,51=+0,23+P[(A u B u C )(AB u AC u BC)^c

=0,28

1000 CUSTOMERS*28%=280

6 0

4 years ago

I need help finding the inverse of this problem

fomenos

$y=\sqrt{x-1}+6$

(Notice that we always have $y\ge6[tex].)Swap [tex]x$ and $y$ , then solve for $y$ :

$x=\sqrt{y-1}+6$

$x-6=\sqrt{y-1}$

$(x-6)^2=(\sqrt{y-1})^2$

$(x-6)^2=y-1$

$y=(x-6)^2+1$ (this is the inverse)

###

This inverse is valid only for $x\ge6$ . Why?

Suppose we take $x=0$ . Then

$y=(0-6)^2+1=37$

This would suggest that in the original equation, we should get $x=37$ when $y=0$ . But when we check this, we end up with

$0=\sqrt{37-1}+6=\sqrt{36}+6=6+6=12$

which is clearly not true.

6 0

3 years ago

If the slope = -2 and the y-intercept=3 what is the correct equation in slope-intercept form?

vlabodo [156]

Answer:

y=-2x+3

Step-by-step explanation:

Slope formula: y=mx+b

m=slope

b=y-intercept

8 0

3 years ago

Lee's fifth-grade class has 1.4 times as many students as Fred's. If there are a total of 60 students , how many students does F

dalvyx [7]

Lee's class has 35...Fred's has 25..
total is 60

3 0

3 years ago

Sheldon picked 5 3/10 kg but 1.5 were rotten and thrown out how many kilograms of tomatoes were rotten

Helga [31]

Answer:

<u>1.5 or 1 1/2 kilograms were rotten and thrown out</u>

Step-by-step explanation:

1. Let's review the information given to us to answer the question correctly:

Amount of kilograms of tomatoes Sheldon picked = 5 3/10

Amount of kilograms of tomatoes rotten = 1.5

2. How many kilograms of tomatoes were rotten?

<u>1.5 or 1 1/2 kilograms were rotten and thrown out</u>

5 0

4 years ago