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const2013 [10]
3 years ago
12

Out of 820 discs tested, 33 are defective. Estimate the number of defective discs in a batch of 17,000.

Mathematics
2 answers:
Zina [86]3 years ago
7 0
684 discs would be correct
Vlada [557]3 years ago
4 0

Answer:

684 discs

Step-by-step explanation:

33/820 were defective

17,000/820= 20.73

20.73*33

684 discs

-you could also do 4% of 17,000

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Can someone help me really please
JulsSmile [24]

Answer:

26

Step-by-step explanation:

Let x represent the missing number

8\frac{11}{15} = 7\frac{x}{15}

Convert both fractions to improper fractions

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Cross multiply

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Subtract both sides by 1,575

15x = 1,965 - 1,575

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Divide both sides by 15

x = \frac{390}{15}

x = 26

4 0
2 years ago
two lines, r and m, are represented by the following equations: line r: 2x 2y = 18 line m: x y = 9 which statement is true about
Masja [62]
Line r is twice line m. i.e. r = 2s which means that they are linearly dependent.

Therefore there are infinitely many solution to the given set of equations.
6 0
3 years ago
Earl mows lawns one weekend. He earns $12 for each lawn that he mows. He spends $40 on gas and other supplies.
Svetlanka [38]
Answer is D) f(x) = 12x-40
6 0
3 years ago
Read 2 more answers
Select all that apply.
Fed [463]

Answer:15/20 3/4

Step-by-step explanation:

Because 3 times 5 =15 and 4 times 5= 20 so that will be 15/20

Then if you multiply 3 and 4 by 1 it will give you 3/4

4 0
3 years ago
Read 2 more answers
What number adds up to 15 and multiplies 9?
serious [3.7K]
I'm not quite sure what this is specifically asking for, but I think the answer is 3.

3 can be added to itself 5 times to get 15 and multiplied by itself to get 9.

Hope this helps!
8 0
3 years ago
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