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Nataly [62]
3 years ago
14

1. 232 is 8 times the sum of Mark's and his sister's ages. His sister is 21. Find Mark's age.

Mathematics
1 answer:
AURORKA [14]3 years ago
3 0

Answer:

a. 8 years

b. $49.20

Step-by-step explanation:

The computation is shown below:

a. The mark age is

Given that

232 is 8 times of the sum of mark and his sister ages

And, his sister is 21

So,

Let us assume the mark age be x

now

8(x + 21) = 232

x + 21 = 29

x = 29 -21

x = 8

b. The original price of the socks is

As each pair get $3 off

And she bought 6 pairs for $31.20

= $31.20 + 6 × $3

= $31.20 + 18

= $49.20

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What is the probability that if you multiply two randomly-selected two-digit whole numbers, the result is greater than 100 and l
ohaa [14]

Answer:

4/675

Step-by-step explanation:

There can be 90  two-digit numbers ranging from 10 to 99. There will be

90 x 90= 8100 possibilities of randomly selecting and combining 2 entire two-digit numbers, if we find ax b to be distinct from bx a. When 10 is first chosen, there may be 9 two-digit numbers that could be combined within the required range for a product When 11 is chosen first, then the second two-digit number has 9 possibilities. 12 has seven options; 13 has six options; 14 has five options; 15 has four options; 16 has three options; 17 has two options; 18 has 2 options; and 19 has one option. It provides us 48 total choices so the likelihood that the combination of two randomly chosen two-digit whole numbers is one of theses  these possibilities is thus 48/8100 = 4/675.

8 0
3 years ago
Assume that the Poisson distribution applies and that the mean number of aircraft accidents is 9 per month. Find​ P(0), the prob
Ugo [173]

Answer: 0.0001

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Step-by-step explanation:

Given :  Mean number of aircraft accidents = 9 per month

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If X = the number of aircraft accidents per month, then the probability that in a​ month, there will be no aircraft accidents will be :-

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Hence, the probability that in a​ month, there will be no aircraft accidents = 0.0001

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5 0
3 years ago
Evaluate the following expressions, and justify your answers.<br> WhatPower7(49)
MaRussiya [10]

Answer:

whatpower7(49) = 2

Step-by-step explanation:

given data  

WhatPower7(49)

to find out

Evaluate the expressions WhatPower7(49)

solution

as we know that whatpower mean exponent of equation so we get by given equation  

we know whatpower7(49) = 2

because  

we know that  7 × 7 = 49  

so that 7² = 49

so that  the exponent  is here 2 for 7 that become 49

so correct answer is 2

6 0
3 years ago
PLEASE HELP ASAP 25 POINTS
dimaraw [331]

Answer:

the answer is d

Step-by-step explanation:


4 0
3 years ago
Read 2 more answers
What is the surface area of the prism
slega [8]
Surface Area of the Prism = (6x4) = 2(5x4) + 2(1/2x6x4)

Surface Area of the Prism = 24 + 40 + 24

Surface Area of the Prism =88 cm²

------------------------------------------------------------------
Answer: Surface Area of the Prism =88 cm²
------------------------------------------------------------------

7 0
2 years ago
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