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bagirrra123 [75]
3 years ago
10

If the simple interest on $4,000 for 10 years is $3,200,then what is the interest rate

Mathematics
2 answers:
NeX [460]3 years ago
4 0
The. Interest rate would be 1.25.
STALIN [3.7K]3 years ago
3 0
The answer will be 1.25
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In how many ways can a quality-control engineer select a sample of3 transistors for testing frm a batch of 100 transistors?
Advocard [28]

Answer:

161700 ways.

Step-by-step explanation:

The order in which the transistors are chosen is not important. This means that we use the combinations formula to solve this question.

Combinations formula:

C_{n,x} is the number of different combinations of x objects from a set of n elements, given by the following formula.

C_{n,x} = \frac{n!}{x!(n-x)!}

In this question:

3 transistors from a set of 100. So

C_{100,3} = \frac{100!}{3!(100-3)!} = 161700

So 161700 ways.

6 0
3 years ago
At the fast food restaurant, an order of fries costs $1.05 and a drink costs $1.07. How much would it cost to get 3 orders of fr
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$7.43

Step-by-step explanation:

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d (drinks) = 1.07

1.05f + 1.07d = ?

To solve this problem, you need to replace the variable with the amount of each item.

1.05(3) + 1.07(4) = ?

Now we can solve by multiplying and adding:

3.15 + 4.28 = ?

<u>7.43</u>

5 0
2 years ago
What is - 5/6k greater than equal to -15?
natta225 [31]
The answer is k is greater than or equal to 18
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3 years ago
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Can someone help me I honestly don't know what that means...like what do all the simbles mean in the question.
balu736 [363]

Answer:

x = 3

Step-by-step explanation:

if you count the right side you get 13 so now you subtract the ones on the left so like this  

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