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azamat
2 years ago
9

Please help me with this PROBABILITY question! I'm really stuck and would really appreciate your help.

Mathematics
1 answer:
igor_vitrenko [27]2 years ago
8 0

Answer:  The probability of picking a black bead is 4/7, because there are 4 black beads out of seven.  But if you took the first black bead out of the equation then the probability is now 3/7.

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What is the percent of each? Please help!!
il63 [147K]

Answer:

1 Cards = 36%

2 Cards = 28%  

3 Cards = 24%

4 Cards = 12.5%

Step-by-step explanation:

7 0
3 years ago
Point E is the midpoint of AB and point F is the midpoint
GREYUIT [131]

The options are;

1) AB is bisected by CD

2) CD is bisected by AB

3) AE = 1/2 AB

4) EF = 1/2 ED

5) FD= EB

6) CE + EF = FD

Answer:

Options 1, 3 & 6 are correct

Step-by-step explanation:

We are told that Point E is the midpoint of AB. Thus, any line that passes through point E will bisect AB into two equal parts.

The only line passing through point E is line CD.

Thus, we can say that line AB is bisected by pine CD. - - - (1)

Also, since E is midpoint of Line AB, it means that;

AE = EB

Thus, AE = EB = ½AB - - - (2)

Also, we are told that F is the mid-point of CD.

Thus;

CF = FD

Point E lies between C and F.

Thus;

CE + EF = CF

Since CF =FD

Thus;

CE + EF = FD - - - (3)

5 0
3 years ago
The relationship between the number of hours a plumber works and the total work fee
Lynna [10]

Answer:

ANSWERS ARE B, C, AND D.

Step-by-step explanation:

I found the unit rate of 350 and 5, because we can use a calculator (as stated on top) I just punched in 350 divided by 5 and got 70. Now i know this may not sound that "professional", but nothing needs to always be professional as long as its efficient and most importantly gets you the right answer. I then took the time to multiply each number, (the ones on the left : 3, 3.5, 6, 7.25, and 8) by 70. If the answer you got on the calculator match up to the number on the right, (240, 420, 507.50, and 490) its correct, if it doesn't match up, you can tell that its most likely not the answer. You should end up with three answers that all end up having the unit rate of 70. Hope this helps anyone who needed it.

ANSWERS ARE B, C, AND D.

5 0
3 years ago
Read 2 more answers
Here is the photo someone please help
Alja [10]

Answer:

Rational

Integer

Whole

Real

Step-by-step explanation:

<u>Rational</u><u>:</u><u> </u>

The square root of 4 is 2, which is an integer (number without decimals). A number is only irrational if it has endless decimals after it.

<u>Integer</u><u>:</u>

A number without decimals

<u>Whole:</u>

A number without fractions; an integer.

<u>Real: </u>

Real numbers include whole numbers, rational numbers and irrational numbers- pretty much any number you can think of. The only numbers that ARENT considered real are imaginary numbers like √-1 and infinity.

7 0
3 years ago
PROBLEMA MATEMÁTICO:
Tema [17]

Answer:

Step-by-step explanation:

divide los números entre cuántos hermanos y cuántos euros

7 0
3 years ago
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