You only use half of the bag of walnuts and you buy another pound bag of almonds. you are going to use the entire bag of almonds because that's the 2/3 you're missing

7 0

3 years ago

Discs of a radius 4cm are cut from a rectangular plastic sheet of length 84cm and width 24 cm

Aleonysh [2.5K]

Answer: 40

Step-by-step explanation:

Given

Radius of disc $r=4\ cm$

The dimension of the sheet is $84\times 24\ cm^2$

Area of a single disc

$\Rightarrow a=\pi r^2=\frac{22}{7}\times 4^2\\\\\Rightarrow a=\frac{352}{7}\ cm^2$

Area of sheet

$\Rightarrow A=84\times 24=2016\ cm^2$

No. of discs that can be cut off the sheet are

$\Rightarrow n=\dfrac{A}{a}=\dfrac{2016}{\frac{352}{7}}=\dfrac{2016\times7}{352}\\\Rightarrow n\approx 40$

The total area of the disc is

$\Rightarrow na=40\times\frac{352}{7}=2011.428\ cm^2$

Sheet wasted

$\Rightarrow A-na=2016-2011.428=4.57\ cm^2$

7 0

3 years ago

PLEASE HELP MEEE which ordered pair is a solution to this equation -3x-7y=8

sergejj [24]

D(3,-2 is the answer hope I helped:)

3 0

3 years ago

Argyle can read 7 pages of his book in 5 minutes. At that rate, how many pages can he read in two hours?

Inga [223]

The answer should be 85 books per hour so 170 two hours

5 0

4 years ago