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goldfiish [28.3K]
3 years ago
7

Please help!! Will give brainliest! Solve for z show work

Mathematics
1 answer:
Olenka [21]3 years ago
4 0

Answer:

18 1/2

Step-by-step explanation:

1/2z = 9 1/4

1/2z = 37/4

z = 74/4 (Multiplied on both sides by 2 to get of the 1/2)

z = 18 1/2

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(60)x = 1, what are the possible values of x? Explain your answer.
Gnesinka [82]

Answer:

\frac{1}{60}

Step-by-step explanation:

Problem:

 The possible values of x in the equation (60)x = 1;

Solution:

Such a problem like this in which the highest power of the unknown is 1 will have just one solution.

       60x  = 1

To solve this, we take the multiplicative inverse of 60;

   the multiplicative inverse of 60 = \frac{1}{60}

   Use this inverse to multiply both sides of the expression;

         \frac{1}{60} x  60x  = 1 x \frac{1}{60}

                   x  = \frac{1}{60}

7 0
3 years ago
PLZ ANSWER THIS QUESTION <br><br> what is 10 decreased by u.
tigry1 [53]

Answer:

10-u

Step-by-step explanation:

7 0
3 years ago
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In Ethiopia there are 20 premier league soccer teams. in one round how many games are there?​
frosja888 [35]

Answer:

190 games

Step-by-step explanation:

²⁰C₂ = 20!/[(20 - 2)! * 2!] = 190

4 0
3 years ago
Find the equation of the line through the point (2, 5) that cuts off the least area from the first quadrant. Give your answer us
Amanda [17]

The equation of the line would be

y = mx+b 

where m is the slope, b is the y intercept. 

<span>The line will form a triangular region in the first quadrant. Its area would be 1/2 base times height. The height is the y intercept and the base is y intercept divided by slope. Therefore,</span>

A = b^2/2m

At point (2,5)

5 = 2m+b

Substitute that in the area

A = b^2/5-b to find the least area, differentiate the area with respect to the height and equate it to 0 

dA/db = 0

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4 0
3 years ago
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Is –54 ÷ 6 positive or negative?
Zigmanuir [339]

Answer:

Negative

Step-by-step explanation:

  1. –54 ÷ 6 = -9

7 0
4 years ago
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