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andrezito [222]
3 years ago
15

78 students are going to be divided into 24 groups and the number of each group member will be either 4 or 2. How many groups of

2 will there be ? Let x be the number of groups of 2 and let y be the number of groups of 4
Mathematics
1 answer:
True [87]3 years ago
7 0
36 and 45 that will be your answer
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Find the solution to the following equation by transforming it into a perfect square trinomial.
Alja [10]
x^{2} -12x=13\ \ \ \Leftrightarrow\ \ \ x^2-2\cdot x\cdot 6+6^2-6^2=13\\\\ \Leftrightarrow\ \ \ (x-6)^2=13+36\ \ \ \Leftrightarrow\ \ \ (x-6)^2=49\ \ \ \Leftrightarrow\ \ \ (x-6)^2=7^2\\\\x-6=7\ \ \ \ \ \ \ or\ \ \ \ \ \ \ \ x-6=-7\\\\x=13\ \ \ \ \ \ \ \ \  \ \ \ \ \ \ \ \ \ \ \ \ x=-1\\\\Ans.\ x\in \{-1,\ 13\}
6 0
3 years ago
Read 2 more answers
Jason has 1/6 yard of wire . He cuts it into 4 pieces of same length.what is the length in yards of each piece.
klemol [59]

Answer:

1/24 yards.

Step-by-step explanation:

1/6 / 4

= 1/6 * 1/4

= 1/24.

7 0
3 years ago
Elizabeth lives in San Francisco and works in Mountain View. In the morning, she has 3 transportation options (take a bus, a cab
Lesechka [4]

Answer:

4/9

Step-by-step explanation:

The possibilities of transportation: (The first will be for morning, second will be for afternoon)

B, B

B, C

B, T

C, B

C, C

C, T

T, B

T, C

T, T

It is clearly seen that there are 9 transportation options.

(Using cab 1 time we have BC, CB, CT, TC. So four of the transportation methods use cab one time.)

Therefore, the probability that she will use a cab only once is 4/9.  

6 0
3 years ago
Describe these sets June July january​
VladimirAG [237]

Answer:

hii aina do u have z.o om

how r u

6 0
3 years ago
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Determine the intercepts of the line.
Ymorist [56]

Step-by-step explanation:

The x-intercept is the value of x when y is 0

So you need to substitute:

0 = 4x + 7

-7 = 4x

-7/4 = x

(-7/4,0)

Similarly, the y-intercept is the value of y when x is 0

So:

y = 4x + 7

y = 4(0) + 7

y = 7

(0,7)

5 0
2 years ago
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