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tino4ka555 [31]
3 years ago
7

Tom keeps all of his favorite marbles in a special leather bag. right know five red marbles four marbles and three marbles are i

n the bag .
part A:if he randomly chooses one marbles to give to a friend what is the probability that it is blue.

part B: tom does not really want to give away blue marbles and would like to change the probability that he choose a blue marble to 1/10. how many marbles that are not blue could he add to the bag so that the probability of choosing a blue marble becomes 1/10
Mathematics
1 answer:
riadik2000 [5.3K]3 years ago
5 0
Part a: seven to five because there it says that there is five red marbles but it doesn't say any other colors for and if the other marbles so weave to assume that the rest are blue

Part b: tom could add 70 other color marbles because it is equivalent to 1/10 and it would happen with out taking any marbles out of the bag
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5y + 3 > -7 + 13 how do i do this
ASHA 777 [7]
5y + 3 > -7 + 13

First add -7 + 13 = 6

5y + 3 > 6

Subtract 3 from both sides

5y + 3 -3 > 6 - 3

5y > 3

Divide both sides by 5

5y/5 > 3/5

y > 3/5
5 0
3 years ago
Which temperature is colder? -10 degrees or -13 degrees
frez [133]

Answer:

-13

Step-by-step explanation:

The more negative the number, the colder it is

-13 is more negative than -10

-13 < -10

-13 is colder

3 0
2 years ago
The radius of a sphere is multiplied by . What effect does this have on the volume of the sphere? A. The volume of the sphere is
Greeley [361]

Answer:

Option A. The volume of the sphere is multiplied by 1/343.

Step-by-step explanation:

The volume of a sphere can be obtained by the following formula:

V = 4/3πr^3

Let the initial volume (V1) of the sphere be:

V1 = 4/3πr^3 = (4πr^3)/3

Now, if we multiply the radius by 1/7, then the new volume (V2) of the sphere will be:

V2 = 4/3 x π x (1/7r)^3

V2 = 4/3 x π x 1/343r^3

V2 = (4πr^3)/1029

Now we determine the ratio of V2 : V1 as shown below:

V2/V1 = (4πr^3)/1029 ÷ (4πr^3)/3

V2/V1 = (4πr^3)/1029 × 3/(4πr^3)

V2/V1 = 3/1029

V2/V1 = 1/343

V2 = 1/343 x V1

Therefore, the volume of the sphere is multiplied by 1/343.

3 0
2 years ago
Rita car can travel 35 miles on one gallon of gas she needs she needs to trace 157.5 miles how many gallons of gas will she need
Otrada [13]
You would do 157.5/35 to find how much gas she needs

157/35=4.5
She'll need 4.5gallons of gas
3 0
3 years ago
What are the slope between (-5,-2) and (8,13)​
Cerrena [4.2K]

Answer:

The slope:

m = \frac{15}{13}

Step-by-step explanation:

-To determine the slope of the following points shown, you need this formula:

m = \frac{y_{2} - y{1}}{x_{2} - x_{1}}

(m represents the slope, (x_{1}, y_{1}) represents the first coordinate and (x_{2},y_{2}) represents the second coordinate)

-Apply the following points to the formula:

m = \frac{13 + 2}{8 + 5}

Then, solve:

m = \frac{13 + 2}{8 + 5}

m = \frac{15}{13}

So, the slope is \frac{15}{13}.

8 0
3 years ago
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