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Nina [5.8K]
3 years ago
14

Solve 12n+7p-6n=25p for n

Mathematics
2 answers:
alekssr [168]3 years ago
3 0

Answer:

6n = 18p

Step-by-step explanation:

dangina [55]3 years ago
3 0

Answer: n=3p

Step-by-step explanation:

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5L/s=__________kl/min
Zina [86]
0.3kl/min
hope that helps
6 0
3 years ago
In a 30cm by 25cm rectangle, a quadrant of a circle of radius 7cm has been cut away from each corner. What is the perimeter of t
lidiya [134]

Answer:

Perimeter = 98 cm

Area = 596 cm^{2}

Step-by-step explanation:

Please refer to the attached image for the resultant figure when a quadrant of circle with radius 7 cm is cut from a rectangle of sides 30 cm and 25 cm.

Perimeter of a figure = Sum of all its sides + Perimeter of circle

Quadrant of a circle is one fourth of a circle and there are 4 such quadrant of a circle, so eventually there is one complete circle in this figure.

The sides of this resultant figure = 30 - 14 = 16 cm

and 25 - 14 = 11 cm

So perimeter of this figure = 16 + 11 + 16 + 11 + Perimeter of circle

\Rightarrow 54 + 2 \pi r\\\Rightarrow 54 + 2 \times \dfrac{22}{7} \times 7\\\Rightarrow 54 + 44 = 98 cm

To find area of this figure = Area of rectangle - Area of circle

Area of rectangle = Length \times Width

\Rightarrow 30 \times 25 = 750\ cm^{2}

Area of circle = \pi r^{2}

\Rightarrow \dfrac{22}{7} \times 7^{2} = 154\ cm^{2}

So, area of figure = 750 - 154 = 596 cm^{2}

3 0
2 years ago
If |x| = 7 and |y| = 13, then which of the following could be equal to x + y?
likoan [24]

Answer:

20, -20, -6, 6

Step-by-step explanation:

x and y could be negative or positive.

6 0
3 years ago
Read 2 more answers
220 students went on a field trip. eight buses were filled and 4 students traveled in car. how many students were in each bus?​
Monica [59]

Answer:

27

Step-by-step explanation:

220-4=216

216/8=27

4 0
2 years ago
Fifteen percent of the cars in a parking lot are green. If there are 45 green cars, how many cars are there in the parking lot?
Olegator [25]
45/x =15/100
Cross multiply
15x=4500
Divide both sides by 15
X=300
300 total cars on parking lot
7 0
2 years ago
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