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Rasek [7]
3 years ago
15

Zayden has a total of 20 bills in his wallet. Also, his wallet only contains $50 and $100 bills. If the numbers of $50 and $100

bills are interchanged, the total amount of money in Zayden’s wallet would be $500 more than it originally was. Find the original amount of money in his wallet.
$
Mathematics
1 answer:
iVinArrow [24]3 years ago
8 0

Step-by-step explanation:

x = number of $50 bills

y = number of $100 bills

x + y = 20

50x + 100y + 500 = 100x + 50y

50y + 500 = 50x

y + 10 = x

now we use that in the first equation :

y + 10 + y = 20

2y = 10

y = 5

x = y + 10 = 5 + 10 = 15

so, he has 15 $50 bills and 5 $100 bills = $750 + $500 = $1250 in his wallet

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8 0
2 years ago
1. Michael Murphy is employed at Agilent Technologies. He has family medical coverage through the group medical plan that Agilen
Yakvenalex [24]

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1. The annual premium cost for Michael's family is $5,260. The company pays 70% of the cost. Therefore, the cost he needs to may is,

30% of $5,260

= 0.30 × $5260

= $1578

Since the premium is needed to be paid in 52 week, therefore, the premium cost per week will be,

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2. Brenda annual premium is $3,500. Also, her medical bills is totaling to $12,000. Therefore, the total amount that is paid by the Brenda in purchasing Insurance and paying the bill is,

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5 0
2 years ago
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Ludmilka [50]
The equation would be x+7x+12x = 100
solving gives x=5
12×5=60
7×35

5+35+60=100

The age/answer is 60
8 0
3 years ago
Read 2 more answers
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antoniya [11.8K]

Answer:

10

Step-by-step explanation:

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7 0
3 years ago
The equation Y-3 = -2(x+ 5) is writen in point-slope form. What is the y-intercept of the ine?
olga_2 [115]

Answer:

-7

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hope this helped!

6 0
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