3 years ago

The percent of working students increased 12.2% to 32.9%, what was the percent prior to the increase?

Mathematics

1 answer:

Cloud [144]3 years ago

5 0

Answer:

20.7%

Step-by-step explanation:

Simply subtract 12.2 from 32.9 (32.9 - 12.2 = 20.7).

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The pentagonal prism has a perpendicular distance of 14 units between the bases. The volume of the prism is 840 cubic units. Wha

Leno4ka [110]

Answer:

Option 4. Perimeter = 30 units

Step-by-step explanation:

Since the volume of a pentagonal prism is 840 cubic units.

Perpendicular distance between the bases = 14 units

We know volume of a pentagonal prism = Area of base × distance between the bases

840 = Area × 14

Area = 840/14 = 60 square units

Now area of a pentagon

$A=\frac{a^{2}}{4}\times\sqrt{5(5+2\sqrt{5})}$

$1.72a^{2}=60$

$a^{2}=\frac{60}{1.72}=34.90$

$a=\sqrt{34.9}=5.91$

Therefore perimeter of the pentagon = 5×a = 5×5.91 = 29.54 ≈ 30 units

8 0

3 years ago

You have to fill a can of gasoline with a capacity of 12 liters.

Rufina [12.5K]

Answer:

C=0,12N-1,15

Step-by-step explanation:

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2 years ago

What is the 5th term in the sequence below? 255, 270, 285, 300,

lesya [120]

Answer:

315

Step-by-step explanation:

each one adds 15.

300 + 15 = 315

8 0

2 years ago

What is the perimeter of the rectangle with length of 2x + 3 and width of 5x – 5? Explain your process to find the perimeter.

Furkat [3]

Answer:

14x-4

Step-by-step explanation:

length:2x+3

width:5x-5

perimeter of rectangle:2(l+b)

:2(2x+3+5x-5)

:2(7x-2)

:14x-4

•••The perimeter of rectangle(p)=14x-4

5 0

3 years ago

X2 + 10x – 11 = (x - 1)<br> x2 + 12x + 11

lora16 [44]

Answer:

x²+12x+11=(3x+21)

Step-by-step explanation:

x²+10x–11=(x–1) (+2x)

x²+12x–11=(3x–1) (+22)

x²+12x+11=(3x+21)

Hope that's what you're looking for

5 0

3 years ago