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Over [174]
3 years ago
13

There are 30 musicians in the carter school marching band. How many of them play brass instruments

Mathematics
2 answers:
JulijaS [17]3 years ago
8 0
There are 7 people who play brass
Anuta_ua [19.1K]3 years ago
8 0
I believe that there is 7 of them that play brass instruments.
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240 televisions of a store are are high definition. These 240 televisions make up 80% of the televisions. How many televisions a
Eddi Din [679]

Answer:

300

Step-by-step explanation:

Let's call N the total number of televisions. We have that 240 televisions make up of 80% of the total number of televisions, so we can rewrite it as

0.80 N = 240

where 0.80 means 80 % (\frac{80}{100}=0.8. By solving the equation above, we find

N=\frac{240}{0.80}=300

So, the total number of televisions is 300.

4 0
3 years ago
Solve for me pls :)
I am Lyosha [343]

Answer:

<h2>f(19) =  -  \frac{27}{7}  \\</h2>

Step-by-step explanation:

f(x) =  \frac{3}{x + 2}  -  \sqrt{x - 3}  \\

To find f(19) , substitute the value of x that's 19 into f(x). That is for every x in f (x) replace it with 19

We have

f(19) =  \frac{3}{19 + 2}  -  \sqrt{19  - 3}  \\  =  \frac{3}{21}  -  \sqrt{16}  \\  =   \frac{1}{7}  - 4 =  \frac{1 - 28}{7}

We have the final answer as

f(19) =  -  \frac{27}{7}  \\

Hope this helps you

8 0
3 years ago
PLEASE HELPP ME IT"s DUE TODAY!!!!!
pishuonlain [190]

Answer:

since -5 and -5 are the same number, they are on the same y axis so the only distance we need to calculate is between the X coordinates

so when looking for distance you can not have a negative what |-3|+|9| is looking for is the distance from 0 on the X axis since distance can't be negative, (you go 3 miles away from your house in one direction, vs 3 miles in the opposite both ways is positive, even with opposite directions same with axis, it doesnt matter which way, only the number.) you need the absolute value of -3 to get the distance from the 0 on the x axis

short version: distance is positive and its adding the distances from the x axis to get distance from each other

Step-by-step explanation:

5 0
2 years ago
could someone please help with these three? I got a few minutes left and I'm clueless IM IN NEED OF HELP!!
algol [13]

Answer:

Student 1 has the correct answer

Student 2 started of OK but then divides the number of white marbles by the number of non-white marbles, which is incorrect.

Student 3 reports a probability larger than 1 which is impossible. Also the answer is not in percentages.

7 0
3 years ago
HELP PLEASE<br> ILL GIVE 20 POINTA
svet-max [94.6K]
Is the pic there bcz it don’t pop out on mines
8 0
3 years ago
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