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eduard
2 years ago
12

Find the value of two numbers of their sum is 144 and their difference is 22

Mathematics
1 answer:
lozanna [386]2 years ago
3 0

Answer:

83 + 61 = 144

83 - 61 = 22

Step-by-step explanation:

x + y = 144

<u>x - y = 22</u>

2x = 166

x = 83

83 + y = 144

y = 144 - 83

y = 61

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Evaluate the following expression when a = 5 and b = 6 3a +10b
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The answer is 75 I believe :)
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By selling a watch in Rs 150 and Rs 200 loss and profit are happened
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Answer:

Rs 175

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3 0
3 years ago
Aaron was offered a job that paid a salary of \$57,000$57,000 in its first year. The salary was set to increase by 1% per year e
Jobisdone [24]

Answer:

The total amount received is: $1906650

Step-by-step explanation:

Given

a = \$57000 --- initial

b = 1\% --- rate

n = 29 --- time

Required

Determine the total amount at the end of 29 years

The given question is an illustration of geometric progression, and we are to solve for the sum of the first n terms

Where n = 29

r = 1 + b

r = 1 + 1\%

Express percentage as decimal

r = 1 + 0.01

r = 1.01

The required is the calculated using:

S_n = \frac{a(r^n - 1)}{r - 1}

So, we have:

S_n = \frac{57000 * (1.01^{29} - 1)}{1.01 - 1}

S_n = \frac{57000 * (1.3345- 1)}{0.01}

S_n = \frac{57000 * 0.3345}{0.01}

S_n = \frac{19066.5}{0.01}

S_n = 1906650

<em>The total amount received is: $1906650</em>

8 0
3 years ago
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