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Maksim231197 [3]
4 years ago
8

If bc=24 and ad=5y-1, find y

Mathematics
1 answer:
s2008m [1.1K]4 years ago
4 0
Bc = 24
Ad = 5y-1

5 times what is 25?
5 x 5 = 25
25 - 1 = 24

Therefore Y = 5
5(5) - 1 = 24
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There are 24 girls and 16 boys in band. if 9 girls and ) boys drop out of band to join choir, is the ratio of boys to girls the
tangare [24]

Answer:

no

Step-by-step explanation:

no because if you subtract 8 from 24 you get 16 and if you subtract 8 from 16 you get half of 16 or 8 :)

3 0
3 years ago
The admissions office of a private university released the following data for the preceding academic year: From a pool of 3900 m
Finger [1]

Answer:

a. 0.09 or 9%

b. 0.324 or 32.4%

c. 0.0972 or 9.72%

Step-by-step explanation:

Male applicants = 3900

Female applicants = 3600

Total applicants = 7,500

Proportion of male applicants (m) = 0.52

Proportion of female applicants (f) = 0.48

a. The probability that a random male applicant is accepted and enrolls is given by the probability of a male student being accepted multiplied by the probability of a male student enrolling:

P(a) = 0.30*0.30=0.09=9\%

b. The probability that a random student is accepted is given by the probability of a male applicant being accepted added to the probability of a female applicant being accepted

P(b) = m*0.30+f*0.35\\P(b) = 0.52*0.30+0.48*0.35\\P(b) = 0.324=32.4\%

c. The probability that a random student is accepted and enrolls is given by the probability of a male applicant being accepted and enrolling added to the probability of a female applicant being accepted and enrolling

P(b) = m*0.30*0.30+f*0.35*0.30\\P(b) = 0.52*0.30*0.30+0.48*0.35*0.30\\P(b) = 0.0972=9.72\%

7 0
3 years ago
Find the volume of each triangular<br>prism<br>7 cm<br>21 cm<br>13 cm​
iragen [17]

Answer:

1911 cm^3

Step-by-step explanation:

The volume is just the 3 numbers cubed

8 0
3 years ago
The table contains data on the mileage displayed on a bicycle odometer as it relates to the number of days since the bicycle was
Neko [114]
Based on the given table above, and using the scatter plot tool, the value of the correlation <span>coefficient for this data set would be r = 0.997, so if you round this off, you will get 1.0. So the answer for this would be the second option which is 1.0. I hope this is the answer that you are looking for. 
</span>
5 0
3 years ago
Read 2 more answers
Ms. Hawkinson is planning to take more pictures of her students. She bought 8 rolls of film and 2 camera batteries for $23.00. T
charle [14.2K]

Answer:

1 Roll = $2.50

1 Battery = $1.50

Step-by-step explanation:

From the question we know that,

8 Rolls + 2 Batteries = $23, and

6 Rolls + 2 Batteries = $18

We can subtract the two equations to obtain a third equation,

(8 Rolls + 2 Batteries) - (6 Rolls + 2 Batteries) = $23 - $18

(8 - 6) Rolls + (2 - 2) Batteries = $23 - $18

2 Rolls = $5

Divide RHS and LHS by 2, to obtain the cost of a roll,

2 Rolls / 2 = $5 / 2

1 Roll = $2.50

If one roll costs $2.50 then 6 rolls cost $15,

6 x $2.50 = $15

We plug in this value into the second equation,

$15 + 2 Batteries = $18

Subtract both sides by $15,

$15 + 2 Batteries - $15 = $18 - $15

2 Batteries = $3

Divide RHS and LHS by 2 to obtain the final answer,

2 Batteries / 2 = $3 / 2

1 Battery = $1.50

7 0
3 years ago
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