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wariber [46]
3 years ago
13

Solving systems of three equations

Mathematics
1 answer:
seropon [69]3 years ago
8 0
Add like terms..........
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Use a for your variable. 13 less than 4 times a number is greater than 75 what's the answer ​
sammy [17]

Answer:

Let n = the number

4n - 9 = n

3n = 9

n = 3

6 0
2 years ago
Read 2 more answers
Your plant runs two assembly lines. The first line produces 1,250 units a day and the second produces 2,825 units a day. What is
Step2247 [10]

Answer:

\frac{50}{113}

Step-by-step explanation:

The ratio is simply the division of one by another (and simplification).

Hence, <u>the ratio of production of the first line to the second line</u> is 1250 divided by 2825. So,

Ratio = \frac{1250}{2825}=\frac{50}{113}

5 0
3 years ago
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The following numerically ordered sequence of numbers has a mean of 17 and a median of 18.
lianna [129]
The values of a and b equals 10
4 0
2 years ago
How do you find the missing number of a perfect square trinomial?<br><br> 25x^2 - 60x + ___
Harrizon [31]

Answer:

  36

Step-by-step explanation:

Compare what you have to the square ...

  (a +b)^2 = a^2 +2ab +b^2

Your "a" is √(25x^2) = 5x

Your "2ab" is -60x. Since you know "a", you can find "b".

  2ab = -60x

  2(5x)b = -60x . . . . . . . substitute for "a"

  b = -60x/(10x) = -6

Then the missing term is b^2 = (-6)^2 = 36.

Your trinomial is ...

  25x^2 -60x +<u>36</u>

4 0
3 years ago
What is the total surface area of a cylinder whose length is twice the radius
lianna [129]
Lateral surface area of a cylinder: 2πrh, r is the radius, h is the height.
area of the top and bottom circle: πr²
when h=2r, the total surface area is:
2πr(2r)+πr²+πr²=6πr²
the answer is 6πr²
7 0
3 years ago
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