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Vladimir [108]
3 years ago
14

Hi guys im new and struggleing for help

Mathematics
2 answers:
S_A_V [24]3 years ago
6 0
Volume of box = Length * width* height

Length = 5

Width = 3

Height = 3

5 * 3 * 3 = 45 cubic units
Nata [24]3 years ago
5 0
There is 45 cubic units.
Hope this helps! (:
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William has been contracted to paint a school classroom. The classroom is 20 m long, 15 m wide and 5 m high. There are four wind
valina [46]

Answer:

Step-by-step explanation:

l -> length

b -> width

h -> height

Find the area of four walls and ceiling. then subtract the area of four windows and a door form that area.

Area of four walls + <u>ceiling</u> = 2( lh + bh) +<u>lb</u>

 = 2*(20*5 + 15*5) + 20*15

= 2( 100 + 75) + 300

= 2* 175 + 300

= 350 +300

= 650 sq m

Area of window = 2 *3 = 6 sq.m

Area of four windows = 4*6 = 24 sq.m

Area of door = 2 * 1 =  2 sq.m

Area of four walls excluding 4 windows and door = 650 - 24 - 2 = 624 sq.m

Cost of painting = 624 * 6.50

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3 0
3 years ago
Read 2 more answers
What is X?<br> Please help!
vodka [1.7K]

Answer:

94

Step-by-step explanation:

the sum of the angles in a triangle add up to equal 180

180-73-13=94

8 0
3 years ago
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A batch consists of 12 defective coils and 88 good ones. Find the probability of getting two good coils when two coils are rando
Allushta [10]

<u>Answer:</u>

The probability of getting two good coils when two coils are randomly selected if the first selection is replaced before the second is made is 0.7744  

<u>Solution:</u>

Total number of coils = number of good coils + defective coils = 88 + 12 = 100

p(getting two good coils for two selection) = p( getting 2 good coils for first selection ) \times p(getting 2 good coils for second selection)

p(first selection) = p(second selection) = \frac{\text { number of good coils }}{\text { total number of coils }}

Hence, p(getting 2 good coil for two selection) = \frac{88}{100} \times \frac{88}{100} =\bold{0.7744}

5 0
3 years ago
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Paladinen [302]
If 6=1 then 6x7= 42 so 42 oz of food per week
5 0
3 years ago
Perimeter=42 meters what is the length
Dominik [7]
4a= 42
a = 42/4 = 21/2cm
7 0
3 years ago
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