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3 years ago

William bought 6 apples for $1.98. How much will 20 apples cost?

Mathematics

2 answers:

larisa86 [58]3 years ago

8 0

Answer:

$6.60

Step-by-step explanation:

6 apples=$1.98

So, 6 times 3= 18 apples

That means you also have too multiply the price by 3 and 1.98 times 3=5.94

now you have 18 of the 20 apples

for the last two, simply divide 1.98 by three which= $.66

then add $.66 to $5.94 and get $6.60

Ksju [112]3 years ago

3 0

Answer:

If 6 apples cost $1.98 then 20 apples cost

Step-by-step explanation:

First you want to find the unit rate so divide both numbers

so the answer is 3

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Answer:

The probability that a part is good given that it passed the inspection machine is P=0.978.

Step-by-step explanation:

As the inspection machine detect and discard any part that is completely defective, only the good and partially defective parts passed this inspection.

Then, if we have:

Probability of being a good part P(G)=0.90

Probability of being a patially defective part P(P)=0.02

Probability of being a completely defective part P(D)=0.08.

Probability of passing the inspection machine = 1-P(D)=1-0.08=0.92

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VikaD [51]

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To solve this question you must FOIL (First, Outside, Inside, Last) like so

First:

(x^2 + 4)(x^2 - 4)

x^2 * x^2

x^4

Outside:

(x^2 + 4)(x^2 - 4)

x^2 * -4

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Inside:

(x^2 + 4)(x^2 - 4)

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Last:

(x^2 + 4)(x^2 - 4)

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x^4 - 4x^2 +4x^2 - 16

Combine like terms:

x^4 - 4x^2 +4x^2 - 16

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Step-by-step explanation:

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