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ELEN [110]
3 years ago
5

A student got 78 marks out of a possible 120. Express the students mark as a percentage

Mathematics
2 answers:
statuscvo [17]3 years ago
8 0

Answer:

65%

Step-by-step explanation:

78/120=13/20

13/20=65/100

65/100=65%

sasho [114]3 years ago
5 0
The answer is 65%


(78/120)*100

=65%
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Find two consecutive positive integers wjose product is 42. (First integer= x, second integer=x+1​
earnstyle [38]
It would be 6 and 7



Hope that helped!
5 0
3 years ago
Let f(x)= [x/3] (where f(x) is the ceiling function). We learned that the floor and the ceiling functions are NOT invertible, bu
meriva

(a) We have ⌊<em>x</em>⌋ = 5 if 5 ≤ <em>x</em> < 6, and similarly ⌊<em>x</em>/3⌋ = 5 if

5 ≤ <em>x</em>/3 < 6   ==>   15 ≤ <em>x</em> < 18

(b) ⌊<em>x</em>⌋ = -2 if -2 ≤ <em>x</em> < -1, so ⌊<em>x</em>/3⌋ = -2 if

-2 ≤ <em>x</em>/3 < -1   ==>   -6 ≤ <em>x</em> < -3

In general, ⌊<em>x</em>⌋ = <em>n</em> if <em>n</em> ≤ <em>x</em> < <em>n</em> + 1, where <em>n</em> is any integer.

I do not understand what is being asked in (c) and (d), so you'll have to clarify...

8 0
3 years ago
Which relation represents f(x) = 2x - 5?
goblinko [34]

Answer:

{(0,-5), (1, -3), (2, -1), (3, 1)

Step-by-step explanation:

If you plug in 1 for x you get f(x)=2(1)-5 which equals 2-5=-3

You would repeat these steps just going up by one number every time

7 0
3 years ago
Help me on this radical expression !
n200080 [17]

\boxed{pd\sqrt[4]{48p^3d}}

<h2>Explanation:</h2>

Here we have the following expression:

\sqrt[4]{48p^7d^5}

So we need to simplify it:

\sqrt[4]{48p^7d^5} \\ \\ \\ We \ can \ write: \\ \\ p^7=p^4\cdot p^3 \\ \\ d^5=d^4\cdot d \\ \\ \\ So: \\ \\ \sqrt[4]{48p^4\cdot p^3\cdot d^4\cdot d} \\ \\ \\ By \ property: \\ \\ \sqrt[n]{x^n}=x \\ \\ \\ Finally: \\ \\ \boxed{pd\sqrt[4]{48p^3d}}

<h2>Learn more:</h2>

Mathematical expressions: brainly.com/question/14200575#

#LearnWithBrainly

3 0
4 years ago
A line has a slope of 9/4 and a y-intercept of -14.
scoray [572]
The answer correct is C.

We can use the linear equation y=mx+b to help. y is the dependent variable, m is slope, x is the independent variable, and b is the y intercept.

In this case, the values of x and y were not given, so we still have y=mx+b. We can substitute 9/4 for m and -14 for b to get y=9/4x-15, which is C.
6 0
3 years ago
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