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nignag [31]
3 years ago
10

there are 5 boys and 2 girls in jazz band find the ratio of the number of boys to the total number of students in the band

Mathematics
1 answer:
lidiya [134]3 years ago
3 0
5:2 hope this helped you welcome
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3 years ago
In one jar, I have two balls labelled 1 and 2 respectively. In a second jar, I have three balls labelled 0, 1 and 2 respectively
PolarNik [594]

Step-by-step explanation:

this is a kind of trick question, actually.

with whatever we draw, we produce X values as power of 3.

to be precise, we can have only

3⁰ = 1

3¹ = 3

3² = 9

3⁴ = 81

due to the possible combinations of drawn numbers (e.g. 3 cannot be created by a multiplication of 0s, 1s and 2s).

so, mostly, these results cannot be exact factors of 1024.

1024 cannot be divided by 3, nor by 9 nor by 81.

but 1024 is a multiple of 1 (as is every number).

so, we are looking at the probability to get 0 as multiplication result of the numbers on the 2 drawn balls.

the only possibilities are

1 and 0

2 and 0

out of in total 6 (2×3) different outcomes

1 and 0

1 and 1

1 and 2

2 and 0

2 and 1

2 and 2

the probability of this "0" event is again

number of desired outcomes / number of possible outcomes = 2/6 = 1/3

6 0
2 years ago
How long will it take for an investment to triple, if interest is compounded continuously at 4%?
Margaret [11]
3p=pe^tr,,3=e^0.04t ,,then use log to find t
3 0
2 years ago
Janine graphs these two lines and finds that they intersect.
Hunter-Best [27]

Answer:3

Step-by-step explanation:

5 0
2 years ago
A store is having a sale on jelly beans and trail mix. For 3 pounds of jelly beans and 2 pounds of trail mix, the total cost is
klasskru [66]
3j+2t=14  subtract 2t from both sides

3j=14-2t  divide both sides by 3

j=(14-2t)/3

...

5j+6t=28, using j found above in this equation yields.

5(14-2t)/3+6t=28  perform indicated multiplication on left side

(70-10t+18t)/3=28  multiply both sides by 3

70-10t+18t=84  combine like terms on the left side

70+8t=84  subtract 70 from both sides

8t=14 divide both sides by 8

t=$1.75, and since j=(14-2t)/3

j=(14-2(1.75))/3

j=$3.50

So a pound of trail mix costs $1.75 and a pound of jelly beans costs $3.50.
7 0
3 years ago
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