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ivann1987 [24]
3 years ago
13

A quality control inspector tested 235 CDs and found 8 defective

Mathematics
1 answer:
antiseptic1488 [7]3 years ago
7 0

Answer:

235 C D s =

8 =

Step-by-step explanation:

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The first discount on a camera was 18%. The second discount was 20%. After these two discounts the price was $328. What was the
Artyom0805 [142]

Answer:

$500

Step-by-step explanation:

We can find the original price of the camera through a proportion. A proportion is an equation where two ratios or fractions are equal. The ratios or fractions compare like quantities.

<u>Second Discount</u>

20% off means we paid 80%. We know we paid $328 of some price.

\frac{80}{100} =\frac{328}{y}

I can now cross-multiply by multiplying numerator and denominator from each ratio.

80y=100(328)\\80y=32800

I now solve for y by dividing by 80.

\frac{80y}{80} =\frac{32800}{80} \\y= $410

The price after the first discount was $410.

<u>First Discount</u>

We will repeat the steps above with $410. 18% off means we paid 82%.

\frac{82}{100} =\frac{410}{y}

I can now cross-multiply by multiplying numerator and denominator from each ratio.

82y=100(410)\\82y=41000

I now solve for y by dividing by 82.

\frac{82y}{82} =\frac{41000}{82} \\y= $500

The original price was $500.


5 0
3 years ago
What is 16,700,000,000,000,000 estimated as the product of a single digit and a power of 10?
True [87]
For short you call this scientific notation. 
FIRST
Count how many time you need to move the decimal over to make your single digit more then 1 and less then 10. So we will erase the 0's as we go along.
167000,000,000,000
So in this case we want to make the single digit 1.67 so it can be greater then 1 and less then 10
So now we see how many times we need to move the decimal and when you cant see the decimal just imagine it at the very end of the problem
167000,000,000,000
(For the mods out there I copied and pasted the bold number so i didn't have to take a while to retype the whole number. Thanks.)
SO NOW I get 14 because that's how many spots the decimal moved over.
Now since we need to right it in SN we need to write out this
X*10^X
The exponent X stands for how many times we moved the decimal over. I got 14 so we have that exponent
X*10^14
NOW We need to fiqure out X.... X was just the number we made greater then one and less then 0.
So thats 1.67
So we get
1.67*10^14

Did this help? <3
4 0
3 years ago
Which of the following measurements must be accurate when used in a grocery store? Check all that apply.​
andrew-mc [135]

Option B

\\

Hope you understand :)

7 0
2 years ago
Select the correct answer.
fenix001 [56]

D. 82 Pairs

43+39= 82. therefore your answer is 82.

:)

7 0
3 years ago
Read 2 more answers
Find the approximate length of the track, including the straight and circular sections
puteri [66]

Answer:

mannn u figure it out

Step-by-step explanation:

6 0
3 years ago
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