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aev [14]
3 years ago
12

mr. wallace surveyed 75 students at poole middle school to find out the students favorite place to eat lunch. the results are sh

own below. which table shows the approximate relative frequencies of mr. Wallace's data?​
Mathematics
1 answer:
ratelena [41]3 years ago
5 0

Here is how the table would look (Although I cannot see the table, I have done this question before).

           Cafeteria Outside Total

Boys     21%       28%     49%

Girls    32%      19%      51%

Total   53%     47%     100%

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If three times the larger of two numbers is four times the smaller and the difference between the numbers is 8, then the larger
MaRussiya [10]

Answer:

Larger number = 32

Step-by-step explanation:

Smaller number = x

Larger number = y

y - x = 8    -----------(I)

3y = 4x  ---------------(II)

3y/4 = x

Plug in x = 3y/4 in equation (I)

y - \frac{3}{4}y = 8\\\\\frac{4}{4}y - \frac{3}{4}y = 8\\\\\frac{1}{4}y = 8\\

 y = 8*4

  y = 32

Plug in y = 32 in equation (II)

3y = 4x

3*32 = 4x

4x = 3*32

x = \frac{3*32}{4}

x = 3 *8

x = 24

7 0
3 years ago
Using 10 grams of a 15% boric acid ointment, the pharmacist will manufacture a 12% ointment. how many milligrams of diluent is r
yan [13]
Use equation C1M1+C2M2=CM
C1=15%, M1=10000 mg (starting ointment)
C2=0%   M2=to be found (diluent)
C=12%   M=M1+M2 (product)

Solve for M2
0.15*10000+0*M2 = 0.12(10000+M2)
M2=(0.15-0.12)*10000/0.12=2500 mg

Answer: 2500 mg of diluent is required.
5 0
4 years ago
Find sin A and cos B exactly
blagie [28]
There’s no picture so we can’t answer
3 0
3 years ago
An object is dropped from the top of a tall building. The height S of the object after t seconds I’d given by the equation S = -
Sladkaya [172]

Answer:

Step-by-step explanation:

   0 = -16t² + 324

16t² = 324

  t²  = 20.25

    t = 4.5 s

5 0
3 years ago
The voltage, V, in an electric circuit is held constant, the current I, is inversely proportional to the resistance, R. If the c
erica [24]

Answer:

70 amps

Step-by-step explanation:

The current I is inversely proportional to the resistance R

I=k/R   (k is the constant of proportionality)

A)   I=210 amperes

     R=4 ohms

I=k/R

k=I×R

k=210×4=840

B)    R=12 ohms

     k=840

    I=k/R

   I=840/12=70 amperes

4 0
3 years ago
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