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Zielflug [23.3K]
3 years ago
7

there are 15 black marbles and 10 white marbles in a bag. If you pick a marble from the bag without looking, what are your chanc

es of picking a white marble?
Mathematics
2 answers:
satela [25.4K]3 years ago
6 0

Answer: 40%

Step-by-step explanation:

olga_2 [115]3 years ago
5 0

Answer: 2/5 or 40%

Step-by-step explanation: 15 + 10 = 25 and 10/25 simplifies to 2/5.

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I need help with three math (algebra) problems?
Bumek [7]
1.
A. (49-8)*2-16, 41*2-16, 82-16, 66, yep
B. 49-8*-14, 49+112, 161, nope
C. 7^(-16)-16, (1/(7^16))-16, nope
D. 49-16-16, 17, nope

A is answer


2.
2((a+b)²-b)
2((7+1)²-1)
2((8)²-1)
2(64-1)
2(63)
126
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4.
none of the options give the answer
3 0
3 years ago
What are the constants in the expression below? 12x -3.7 -8y +1/3
Fantom [35]
Anything without a variable in front.

In other words, the constants are -3.7 and 1/3 
5 0
3 years ago
Read 2 more answers
Help me pls its Pythagorean theorem I need help
ankoles [38]

Answer:

the answer is 3.81

but rounding it it will be 3.8 meters

Step-by-step explanation:

Pythagorean theorem says

a²+b²=c²

so,

take take the Lowest measurement as a² which will be 7 and take 8 as the hypotenuse or the longest side which is c²

then put it all together you get

7²+x²=8²

we made b as x because we will be finding b

then substitute the values

x²=8²-7²

x²=64-49

x²=15

to remove that square from the x you then put square root in both

✓x²=✓15

press in the calculator, root of 15 will be about 3.81

now we got

x=3.81

x is the missing measurement

8 0
3 years ago
Plz help me and give me the answer
enot [183]

Answer:

i think its the second option

Step-by-step explanation:

7 0
2 years ago
Solve the system of equations
Kazeer [188]

Answer:

(3,4)

Step-by-step explanation:

x+y=7, where y=4, so therefore make x the subject and substitute y=4

x=7-y

x=7-4

x=3

therefore x=3, y=4.

8 0
3 years ago
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