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Romashka-Z-Leto [24]
2 years ago
12

8-6: MathXL for School: Practice & Problem Solving

Mathematics
1 answer:
notka56 [123]2 years ago
3 0

Answer:

The Area of a circle is

\pi {r}^{2}

Therefore the Area of Circle A is

\pi {8}^{2}  \\ 201.06

Area of Circle B is

\pi {10}^{2}  \\ 314.16

Circle C

\pi {14}^{2}  \\ 615.75

Circle D

\pi {13}^{2}  \\ 530.93

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Hmm, this answer is mathematically incorrect. If the question has no errors, 38 can go into 7 0 times, it can't because its bigger than 7. 

However, if it were meant to be the other way round, how many times does 7 go into 38, the answer would be 5. 
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Five sixths plus one third
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1.16666666667

Step-by-step explanation:

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A list of 8 numbers has a mean of 6. work out the total of the numbers.​
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Answer:

48

Step-by-step explanation:

The mean of a number is the sum of all the numbers divided by how many numbers there are. We can set up this formula: mean = \frac{sum}{amountnumbers}.

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6x+3=y if y equals 15 what does x equal
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Write an equation for each context. Draw a model first if necessary, and make sure you define your variable and what it represen
Bad White [126]

Answer:

(a)$2248.8

(b) 14, 28, 16 and 7 candies

(c) $79

Step-by-step explanation:

(a) the model can be represented by the nth term of an arithmetic progression

L = a + (n-1)d

L= the amount in his account after 6 month; $12484

a= the amount in his account six month before; $1240

n = 6, being the sixth month of his deposit

d = the amount deposited monthly

12484 = 1240 + 5d:

12484-1240 = 5d

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(b) let the 1st box contain = x

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9x/2 = 63 ; 9x = 126. ; x = 14

(c) Each player gets a racket (r) and a can (c) of balls

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Therefore, 5r + 5c = 415

But each can cost $4,

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5r = 395 ; r = 395/5

r = $ 79

The racket cost $79 each.

8 0
3 years ago
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