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2 years ago

21/50 of the seats for the football game have been sold. This is equal to what decimal?

Mathematics

1 answer:

valentinak56 [21]2 years ago

6 0

First make the fraction over 100

21/50(2/2) = 42/100

42/100 = 0.42

0.42 is your answer

hope this helps

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2 years ago

Find an explicit formula for the following sequence, an which starts with a1=2/3. 2/3,3/4,4/5,5/6,…

Flura [38]

Answer:

Step-by-step explanation:

a1=2/3

sequence is 2/3,3/4,4/5,...

for numerator a1=2

d=3-2=1

numerator of nth term=a1+(n-1)d=2+(n-1)×1=2+n-1=n+1

denominator = 1 more than numerator=n+1+1=n+2

so an=(n+1)/(n+2)

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3 years ago

60% of what number is equal to 30?<br> A) 0.5 B) 2 C) 18 D) 50

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Answer:

D. 50

Step-by-step explanation:

50/1 (60/100) =

3000/100 =

30/1 =

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3 years ago

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What is the mean absolute deviation of this data set?<br><br> 4, 8 , 3, 8, 7, 10, 9

sergeinik [125]

Answer: Mean Absolute Deviation (MAD): 7

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3 years ago

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What is the surface area of the figure shown? Plz answer asap

Luba_88 [7]

Answer:

$264\ cm^{2}$

Step-by-step explanation:

we know that

The surface area of the figure is equal to the lateral face of the triangular pyramid plus the lateral face of the rectangular prism plus the area of the base of the rectangular prism

step 1

Find the lateral face of the triangular prism

The lateral area is equal to the area of its four lateral triangular faces

$LA=4(\frac{1}{2}(6)(7))=84\ cm^{2}$

step 2

Find the lateral area of the rectangular prism

The lateral area is equal to the perimeter of the base multiplied by the height

$LA=(4)(6)(6)=144\ cm^{2}$

step 3

Find the area of the base of the rectangular prism

$B=(6)(6)=36\ cm^{2}$

step 4

Find the surface area

$84\ cm^{2}+144\ cm^{2}+36\ cm^{2}=264\ cm^{2}$

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2 years ago