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alexira [117]
4 years ago
15

PLEASE RESPOND! !!

Mathematics
1 answer:
cestrela7 [59]4 years ago
6 0

Answer:

36/132

Step-by-step explanation:

36/132, .27, 27%...

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mr. martin’s math test, which is worth 100 points, has 29 problems. each problem is worth either 5 points or 2 points. let x be
wariber [46]
Let x and y be the numbers of questions worth 5 and 2, respectively. There are a total of 29 questions which means that x + y should be 29. The equations that best describe the conditions are,
                                      x + y = 29
                                     5x + 2y = 100
Solving for x and y gives x = 14 and y = 15. Thus, there are 14 and 15 questions worth 5 and  2, respectively.
4 0
3 years ago
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4x+8x+7=4 in quadratic equation
suter [353]

You would have to solve for x by simplifying both sides of the equation, then isolating the variable.

So, x= -1/4

8 0
4 years ago
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Wewaii [24]
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What is the slope or the line going through (0,0) (6,8) A: -6/8 B: -3/4 C: 3/4 D: 8/6
Vikentia [17]
<h3>Answer: D) 8/6</h3>

Start at (0,0). To get to the other point, you must move up 8 units and move to the right 6 units.

slope = rise/run = (change in y)/(change in x) = 8/6

Or you could use the slope formula

m = (y2-y1)/(x2-x1)

m = (8-0)/(6-0)

m = 8/6

Normally I would reduce, but your teacher has decided not to.

8/6 reduces to 4/3 when you divide both parts by 2.

5 0
3 years ago
The density of concentrated sulphuric acid is 1.8 g/cm.calculate the volume of 3.1 kg of the acid​
Sphinxa [80]

Step-by-step explanation:

density =  \frac{mass}{volume} \\ volume =  \frac{mass}{density}  \\ changing \: 1.8 {gcm}^{ - 3} to \:  {kgm}^{ - 3}  \\ multiply \: by \: 1000 \\  = 1800 {kgm}^{ - 3}  \\ volume =  \frac{3.1}{1800}  \\  = 0.00172 {m}^{ 3}

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4 years ago
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