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gtnhenbr [62]
3 years ago
9

In grade 8, there are 3 teachers for every 25 students. In the examination hallthe ratio of teachers to students is 15:125, Whic

h of the following is true?
Mathematics
1 answer:
Vlad [161]3 years ago
7 0

Answer:

3:25 = 15:125

15:125 is directly proportional to 3:25.

Step-by-step explanation:

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Find an equation for the line that passes through the points (-4,-1) and (6,-5)
Sergio [31]

Answer:

y= -2/5x-13/5

Step-by-step explanation:

4 0
3 years ago
The graph of which of the following equations is a line parallel ot the graph of x-5y=8
kvv77 [185]

Since you don't show the graph, all I can do is to tell you how to identify which function is parallel to the x-5y=8.

First let's rearrange the function.

x-5y=8

5y=x-8

y=1/5x-8/5.

Thus, it gives us the slope of the function, which is 1/5.

And the function that is parallel to the graph would have the SAME slope. Which is 1/5. So all you need to do is to find which function has the SAME SLOPE, in this case: 1/5.

7 0
3 years ago
Solve the rational equation:. x+3/3x-2 minus x-3/3x+2=44/9x^2-4
NISA [10]
\frac{x+3}{3x-2} - \frac{x-3}{3x+2} = \frac{44}{9x^2-4}
\frac{(x+3)(3x+2) - (x-3)(3x-2)}{(3x-2)(3x+2)} = \frac{44}{(3x+2)(3x-2)}

(x+3)(3x+2) - (x-3)(3x-2) = 44
(3x^2 + 11x + 6) - (3x^2 - 11x + 6) = 44
22x = 44
x = 2Substituting x = 2 into the original does not give any extraneous solutions, so this is the answer.
4 0
3 years ago
Please, please help me! I don't even know where to start with solving this...
zvonat [6]
Factorize the left hand side and equate the factors to zero.

Then, use the notation that : sec x = 1/cosx and csc x = 1/sinx

Result: x = ± π3 + 2πk , k∈Z

3 0
4 years ago
Over the last 4 years, Michael has earned $240 interest on an initial investment of $2,000. What simple annual interest rate is
Semenov [28]
The simple interest rate was 0.3 or just 3%
5 0
4 years ago
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