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malfutka [58]
2 years ago
12

Any help? With this problem

Mathematics
1 answer:
frosja888 [35]2 years ago
4 0

Answer:

A and b I think sorry if I'm wrong

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elena-14-01-66 [18.8K]
C: Bc 3 * c = 3c (plus 7 more) = 7+3c
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2 years ago
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Emma is taking out a loan in the amount of $25,000. Her choices for the loan are a 60-month loan at 5% annual simple interest an
My name is Ann [436]

Answer:

The answer is $2750. Which is the difference in the amount of interest Emma would have to pay for these two loans

Step-by-step explanation:

Interest=( P× r × t)/100

60 months is converted to 5years(60/12=5)

Interest= (25000 × 5 × 5) /100

= $6250

72months is converted to 6 years(72/12=6 Years)

Interest=( P× r × t)/100

= (25000 × 6 × 6)/100

=$ 9000

The difference in the interest= $9000- $6250

= $ 2750

5 0
3 years ago
Can anyone please help me with this? i need a step by step explanation please! very appreciated:)
EastWind [94]

Answer:

Step-by-step explanation:

x and y are variables. That means they represent numbers that are unknown. When we solve for x or y, we are trying to find what number the variable represents.

Y is a number that equals both 5x-9 and 3x+7. If it is a number, it can only have one value, so we can say that 5x-9 and 3x+7 have the same value.

In other words, 5x-9 = 3x+7.

Another way of thinking about this step is substitution. y=3x+7, so in the equation y=5x-9, we can replace the y with 3x+7. It will give 3x+7 = 5x-9.

In either case, we have this new equation

5x-9 = 3x+7.

From here it's just simple algebra- subtract 3x from each side

2x -9 = 7

and add 9 to each side

2x = 16

and divide each side by 2.

x = 8.

All these steps work because if two things equal each other, when you do the same thing to both of them (such as add 9), the new values will still equal each other.

Now that we know that x = 8, we can take one of the original equations

y=5x-9

and put 8 in for x.

y=5*(8) -9.

If x represents the value 8, we can obviously switch out x for 8.

Now simplify

y=40 -9

y = 31

Now we know that x = 8 and y = 31.

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