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3 years ago

Please explain thank you!

Mathematics

2 answers:

dybincka [34]3 years ago

4 0

Answer:

56%

Step-by-step explanation:

<em>Percent </em>literally means <em>for each 100</em> ("cent" coming from the Latin word for 100). All percents can be represented as fractions with 100 in the denominator: 3%, for instance, can be written as 3/100, and 4% as 4/100 (or reduced as 1/25).

We can go the other way with fractions: 3/5 can be written as the fraction 60/100, which is 60%.

In this problem, Ainsley spends 28/50 of her allowance at the coffee shop, which can be written as 56/100, or 56%

Rus_ich [418]3 years ago

3 0

Answer:

56%

Step-by-step explanation:

To find a percentage, you need to take a ration of the value you want and the total. In this case, 28 is the value and 50 is the total, right? Then, to make it a s

proper percentage, you multiply by 100. As such:

$\frac{28}{50} \times 100 = \frac{14}{25} \times 100 = \\ = 14 \times 4 = 56$

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My son is seven times older than my grandson and I am 12 times older than my grandson. If you add all our ages together, the sum

Andrej [43]

To solve this problem you first need to establish what it is you are looking for.. if you knew the grandson age then you could find your son and you. So that is what we need to find and since we don't know it, we will call it x.

Grandson = x
Son = 7x
You = 12x

Then it says the sum of the 3 is 100.... x + 7x + 12x = 100 then solve and find that x = 5. So to determine your age, just put 5 in for x and you get 60... dang your old ha

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3 years ago

An automobile manufacturer obtains the microprocessors used to regulate fuel consumption in its automobiles from three microelec

Anastaziya [24]

Answer:

The probability that a randomly selected automobile manufactured by the company will have a defective microprocessor is 6.2 %.

Step-by-step explanation:

Given:

The probability of getting a microprocessor from firm A is, $P(A)=45\%=0.45$

The probability of getting a microprocessor from firm B is, $P(B)=30\%=0.30$

The probability of getting a microprocessor from firm C is, $P(C)=25\%=0.25$

Now, let event D be having a defective microprocessor at random.

So, as per the question,

Probability of producing a defective microprocessor from firm A is, $P(D/A)=6\%=0.06$

Probability of producing a defective microprocessor from firm B is, $P(D/B)=7\%=0.07$

Probability of producing a defective microprocessor from firm C is, $P(D/C)=5.5\%=0.055$

Now, probability of having a defective microprocessor when selected at random is given as:

$P(D)=P(A)\cdot P(D/A)+P(B)\cdot P(D/B)+P(C)\cdot P(D/C)\\P(D)=(0.45\times 0.06)+(0.30\times 0.07)+(0.25\times 0.055)\\P(D)=0.027+0.021+0.01375\\P(D)=0.06175\ or\ P(D)=0.06175\times 100\approx 6.2\%$

Therefore, the probability that a randomly selected automobile manufactured by the company will have a defective microprocessor is 6.2 %.

5 0

3 years ago

If x + y = 5 and at the same time 2x - y = 7. find the value of x

Fed [463]

Answer:

x = 2y − 2

Step-by-step explanation:

x + y + 5 = 2x - y + 7

−x + y + 5 = −y + 7

−x + 5 = −2y +7

−x = −2y + 2

x = 2y − 2

5 0

3 years ago

What is -6y + 3 = 3?

lord [1]

Answer:

y=0

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

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sleet_krkn [62]

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3 years ago