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OLEGan [10]
3 years ago
10

If p=4 and q=10, evaluate the following expression:30/q−p​

Mathematics
2 answers:
Fittoniya [83]3 years ago
5 0

..........the answer is 6

satela [25.4K]3 years ago
3 0
Answer:
5
Explanation:
Plug in p and q into the equation.
30/ (10) - (4)
Subtract 10 and 4
30/6
Divide
5
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In a certain month, Mason spent 1/6 of his salary in the first three days and $800 in the following ten days and after that he w
Nesterboy [21]
<h3>Answer:   $2400</h3>

========================================================

Explanation:

x = Mason's salary in dollars for that month

x/6 = one-sixth of his salary

x/6+800 = total amount spent (the x/6 dollars and $800 combined)

In total, he spent half his salary. This means he spent x/2 dollars for the month overall.

Set the two items equal to one another. Solve for x.

x/6 + 800 = x/2

6(x/6 + 800) = 6*(x/2) ... see note at the bottom of the page

x+4800 = 3x

4800 = 3x-x

4800 = 2x

2x = 4800

x = 4800/2

x = 2400

His monthly salary is $2400

1/6 of this is (1/6)*2400 = 2400/6 = 400 dollars. Add on the $800 he also spent to get a total of 400+800 = 1200 dollars spent, which is exactly one half of the $2400. The answer is confirmed.

-------

Note: I multiplied both sides by 6 to clear out the fractions. The value 6 is the LCD in this case.

7 0
2 years ago
Factorize 9(a+1)^2-81​
Lunna [17]

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Step-by-step explanation:

9(a+1)^2-81

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Open brackets

9(a^2+a+a+1)-81

9(a^2+2a+1)-81

9a^2+18a+9-81

9a^2+18a-72

5 0
3 years ago
Petra jogs 4 miles in 36 minutes. At this rate, how long would it take her to jog 10 miles?
Nataly [62]
90 minutes or 1 hour and 30 minutes.

Hope this helps, 

kwrob
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Answer:

= - 7+z

Step-by-step explanation:

7 0
3 years ago
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