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Oksana_A [137]
3 years ago
12

A bag contain 8 blue balls, 7 green balls and 5 red balls.What is the probability that the ball is red?

Mathematics
2 answers:
Reika [66]3 years ago
5 0

Answer:

0.25

Step-by-step explanation:

Total balls: 8 + 7 + 5 = 20

Red balls: 5

P(red) = 5/20 = 0.25

Nat2105 [25]3 years ago
4 0

Answer:

A bag contains:

8 blue balls.

7 green balls.

5 red balls.

The probability that the ball is red would be:

P = Red balls/Total balls = 5/(5+7+8) = 5/20 = 1/4 =0.25

Hope this helps!

:)

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Tilda makes a scale model of the Titanic. . The actual Titanic was 175 feet tall, Tilda's model is 35 inches tall. What is the s
Greeley [361]

Answer: 1:60

Step-by-step explanation:

Given

The actual titanic is 175 ft tall

Tilda's model is 35 inches tall

first, convert inches into ft

35\ in.\equiv \dfrac{35}{12}\ ft

scale used is

\Rightarrow \dfrac{\dfrac{35}{12}}{175}\\\\\Rightarrow \dfrac{35}{12\times 175}\\\\\Rightarrow \dfrac{1}{12\times 5}=\dfrac{1}{60}

Thus, the scale is 1:60

7 0
3 years ago
Which expression can you simplify by combining like terms?
omeli [17]

Answer:

The correct option is A.

Step-by-step explanation:

If the degree and variables of two terms are same, then they are called like terms.

In option A.

The given expression is  

12b^2+4ab-3ba-6

Here, 4ab and -3ab are like terms because both have same variables a and b with degree 1.

By combining like terms we get

12b^2+(4ab-3ab)-6

12b^2+ab-6

In options B, C and D, there are no like terms, So only the expression 12b^2+4ab-3ba-6 we can simplify by combining like terms.

Therefore the correct option is A.

7 0
3 years ago
Please help guys
yarga [219]

Answer:

Step-by-step explanation:

yes.

x/y is a rational number

because xxby y is irrational that why x/y is rational number

7 0
3 years ago
One number is 6 more than another number, and their sum is 22. find the numbers.
Artist 52 [7]
Set the smaller one to x.  2x+6=22, so 2x=16.  Thus, x=8 and x+6=14, so 8 and 14 are our numbers.
7 0
3 years ago
Which phrases can be used to represent the inequality 12 minus 3 x greater-than-or-equal-to 9? Select two options.
AlexFokin [52]

Answer:

Twelve less three times a number is at least nine.

Twelve minus the product of three and a number is no smaller than nine.

Step-by-step explanation:

complete question is:

Twelve less than three times a number is greater than or equal to nine.

Twelve less than three times a number is at least nine.

Twelve less three times a number is at least nine.

Twelve minus the product of three and a number is no more than nine.

Twelve minus the product of three and a number is no smaller than nine.

ANSWER:

<u>Twelve less three times a number is at least nine.</u>

The phrase "twelve less three..." means that the "three times a number" is being subtracted from twelve. So, it has to be at least nine.

<u>Twelve minus the product of three and a number is no smaller than nine.</u>

Even the least number you suppose is 1 we'll get 9

e.g: 12-3(1)=9. Therefore, this statement also represent the inequality

3 0
3 years ago
Read 2 more answers
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