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marta [7]
3 years ago
5

From 12,000 graphing calculators produced by a​ manufacturer, an inspector selects a random sample of 550 calculators and finds

6 defective calculators. Estimate the total number of defective calculators out of the 12,000.
Mathematics
1 answer:
maria [59]3 years ago
3 0

Answer:

131

Step-by-step explanation:

Using proportion,

If Out of 550 calculators = 6 are defective,

Then out of 12000 calculators = ? are defective

\frac{12000 calculators}{550calculators} * 6

= 21.8 * 6

= 130.8 ≈ 131

∴ Approximately 131 calculators are defective

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3 years ago
The cost of providing water bottles at a high school football game is $35 for the rental of the coolers and $0.50 per bottle
zloy xaker [14]

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The equation of the cost function is C(x) = 35 + 0.5x

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Assume the number of bottles in a cooler is x.

The cost function for the bottles in a cooler would be:

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2 years ago
Easy one - giving brainly if correct - show work.
Maksim231197 [3]

Answer:

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Step-by-step explanation:

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She will be paid 9.6 dollars after 1 full year of working, because working for one year is 12 months, and thats 10 percent of 8 twice. You can also put that as 20 percent of 8, aka 1.6

When you do 8+1.6 it equals 9.6

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Your answer isnt wrong, I dont know why your teacher is saying it is.

4 0
3 years ago
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