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yarga [219]
3 years ago
13

9 Marty conducted a survey in his first period class to determine student preferences for music. Out of 25 students, 14 like hip

-hop music best. There are 300 students in Marty's school. Based on the survey, how many students in the school like hip- hop music best? A. 50 students B. 132 students C. 168 students D. 261 students​
Mathematics
1 answer:
S_A_V [24]3 years ago
6 0

Answer:

C

Step-by-step explanation:

14/25=0.56 0.56x300=168

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What value of y makes the equation 4x – 3y = 17 true, when x = 2?
earnstyle [38]

Answer:

y = -3

Step-by-step explanation:

4x – 3y = 17

x = 2

4(2) - 3y = 17

8 - 3y = 17

-3y = 9

y = -3

7 0
3 years ago
Read 2 more answers
Need help on number 10 pls due tmr!!!!
qaws [65]

Answer:

try doing cross out way

Step-by-step explanation:

8 0
2 years ago
Solve the system by substitution.<br> - 8x + y = -32<br> - 3x – 10 = y<br> (,)
agasfer [191]

Answer:

x=2,\:y=-16

Step-by-step explanation:

\begin{bmatrix}-8x+y=-32\\ -3x-10=y\end{bmatrix}\\\\\mathrm{Isolate}\:x\:\mathrm{for}\:-8x+y=-32:\quad x=-\frac{-32-y}{8}\\\\\mathrm{Subsititute\:}x=-\frac{-32-y}{8}\\\begin{bmatrix}-3\left(-\frac{-32-y}{8}\right)-10=y\end{bmatrix}\\\\Simplify\\\begin{bmatrix}\frac{3\left(-32-y\right)}{8}-10=y\end{bmatrix}\\\\\mathrm{Isolate}\:y\:\mathrm{for}\:\frac{3\left(-32-y\right)}{8}-10=y:\quad y=-16\\\\\mathrm{For\:}x=-\frac{-32-y}{8}\\\\\mathrm{Subsititute\:}y=-16\\x=-\frac{-32-\left(-16\right)}{8}\\

-\frac{-32-\left(-16\right)}{8}=2\\x=2\\x=2,\:y=-16

3 0
4 years ago
Read 2 more answers
Jessica made 124 cookies. She put the cookies into three boxes, A, B and C.
Oxana [17]

There are 78 cookies in box C, 26 cookies in box B and 10 cookies in box A.

let the number of cookies in first box be represented mathematically as   B-16

the number of cookies in second box be represented as B

the number of cookies in third box be represented as 3B

Since there are 124 cookies we can make an equation  such that it becomes

B-16 +B +3B =124

Solving for B, we have

5B -16 =124

5B =124 +16

5B =130

B=130/5

B=26

Therefore Box A contains B-16 =26-16 =10 cookies

Box C contains 3B =3 X 26=78 cookies

See similar question here: brainly.com/question/23505776

7 0
2 years ago
Which test point holds true for 3/2y - 2x&gt;1?
ANTONII [103]
There exists a question that instead of >, the symbol used is ≥. Substitute the value of abscissas and ordinates of the points to x and y, respectively.

A. (1/4, 1)      (3/2)(1) - 2(1/4) = 1              TRUE
B. (4, 1)         (3/2)(1) - 2(4) = -6.5             FALSE
C. (1, 1/4)      (3/2)(1/4) - 2(1) = -1.625      FALSE
D. (1, 0)         (3/2)(0) - (2)(1) = -2              FALSE
E (1/4, 3/4)    (3/2)(3/4) - (2)(1/4) = 0.625  FALSE

Thus, the answer is letter A. 

7 0
4 years ago
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