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lutik1710 [3]
3 years ago
7

HEELP please i dont under stand

Mathematics
2 answers:
DIA [1.3K]3 years ago
7 0
The answer is A 3/10 because there is 3 blue marbles and all together there is 10
Reil [10]3 years ago
4 0
B. 2/9
You add up how many marbles there are. in this case there is 10. 3 out of those are blue. so you start out with the probability being 3/10. you take 1 marble out, making the total 9 now. now look at the color. you started with 2 red, 3 blue, and 5 yellow. you pulled out a blue, didnt put it back, so now there are 2 blue marbles left out of 9 marbles. there probability is now 2/9. hope i helped you.
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What is 2,000,000 x 10,000 x 170 x 10E1146?
Valentin [98]

Answer:

3.4*10^1159

Step-by-step explanation:

2,000,000 x 10,000 x 170 x 10E1146

2,000,000 x 10,000 = 2*10^10

2*10^10*170 =340*10^10

Putting this in proper scientific notation by moving the decimal 2 places to the left, means adding 2 to the exponent

3.4*10 ^ (10+2)

3.4*10^12

10E 1146  means 10*10^1146

This is really 1 * 10^(1146+1)

3.4*10^12 * 10^1147

We add the exponents

3.4*10^(12+1147)

3.4*10^1159

5 0
3 years ago
Marsha spends 150 minutes a night doing homework.
kodGreya [7K]

Answer:

70%

Step-by-step explanation:

Maths homework takes 1/6×150mins

=150/6=25 mins

science homework takes 20/100×150

=3000/100

=30mins

Language Arts homework uses 1/3×150

=150/3

=50 mins

percent of time left for Marsha's social studies homework=total time used / original time

=(25+30+50)mins

=105mins/150mins×100%

=0.7×100

=70%

3 0
2 years ago
Suppose 4-year-olds in a certain country average 3 hours a day unsupervised and that most of the unsupervised children live in r
natta225 [31]

Answer:

D)the time (in hours) a 4-year-old spends unsupervised per day

Step-by-step explanation:

Given that 4-year-olds in a certain country average 3 hours a day unsupervised and that most of the unsupervised children live in rural areas, considered safe

X - the time (in hours) a 4-year-old spends unsupervised per day

X is N(3,1.8)

P(X

4 0
3 years ago
Find the perimeter of this triangle.<br> 10 cm<br> 17 cm<br> 8 cm<br> 21 cm<br> P = [ ?] cm
8_murik_8 [283]

Answer:

perimeter=21+17+10

=48cm

6 0
2 years ago
Can someone please answer this !?!!
snow_tiger [21]

Answer:

midpoint is the answer.....

4 0
3 years ago
Read 2 more answers
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