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Archy [21]
3 years ago
6

Spoints

Mathematics
1 answer:
OLga [1]3 years ago
4 0

Answer:

I dont know if I did the correct because it's been a while

Step-by-step explanation:

10 blue

7 red

2 white

1 black

10+7+2+1= 20 marbles in total

100÷20=5% each marble

5×10= 50% chance blue

5×7= 35% chance red

5×2= 10% chance white

5×1= 5% chance black

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At the farmers market, Nathaniel buys two dozen oranges at $3.50 per dozen, four kilograms of apples at $3.25 per kilogram, two
kirill [66]
Nathaniel's total cost is $(3.50 x2 + 3.25 x4 +1.90 x2 +1.20) = $24 he got 5% off so he paid $24- (24* 5/100) =$22.80
3 0
4 years ago
A metal conduit will be used as a pathway for wiring through a concrete block. The conduit is a 5 foot long rod with an outer di
kolbaska11 [484]

Answer:  586.59 cubic centimeters .

Step-by-step explanation:

As per given . we have

Inner diameter =  1.8 inches

⇒Inner radius :r = 0.9 in.  (radius is half of diameter)

= 0.9 x (2.54) = 2.286 cm  [∵ 1 in . = 2.54 cm]

Outer diameter = 2 inches

⇒Outer radius : R = 1 inch  = 2.54 cm

Height : h = 5 feet = 5 x(30.48) = 152.4 cm   [∵  1 foot = 30.48 cm]

The formula to find the volume of a hollow cylinder :

V=\pi(R^2-r^2)h , where R= outer radius , r= inner radius and h= height.

Now , the volume of metal in the conduit :

V=(3.14)(( 2.54)^2-(2.286)^2)(152.4)

V=(3.14)(6.4516-5.225796)(152.4)

V=(3.14)(1.225804)(152.4)

V=586.591342944\approx586.59\ cm^3

Hence, the volume of metal in the conduit is 586.59 cubic centimeters .

5 0
3 years ago
Emily's younger brother, Kenny, begged her to make him a superhero costume for Halloween this year, so of course Emily did! Emil
iris [78.8K]

Answer:

20 inches

Step-by-step explanation:

Since the cape is trapezoid shaped and has an area of 600 in², the area of a trapezoid is given by

A =1/2(a + b)h where a = length along the top of the cape = 24 in, b =  length along the bottom of the cape = 36 in and h = height of the cape

So, h = 2A/(a + b)

= 2 × 600 in²/(24 in + 36 in)

= 1200 in²/60 in

= 20 in

So, the height of the cape is 20 inches

6 0
3 years ago
The table below shows the proportional relationship between the weight of frozen corn, in ounces, and the number of packs of fro
leonid [27]
C 100% and your welcommmmmmmmmmmeeeeeeee 
7 0
4 years ago
Read 2 more answers
PLZ HELP ASAP AND SHOW UR WORK!!!! THE ≤. WITHOUT THE LINE IN THE BOTTOM
Marina86 [1]

Answer:

B

Step-by-step explanation:

\frac{2}{3}x +6

subtract 6 from both sides

\frac{2}{3}x

divide by 2/3(or multiply by 3/2)

x

and thats your answer

3 0
4 years ago
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