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DiKsa [7]
3 years ago
10

Kira, David, and Lamar served a total of 71 orders Monday at the school cafeteria. David served 9 fewer orders than Kira. Lamar

served 2 times as many orders as Kira. How many orders did they each serve?
Mathematics
1 answer:
CaHeK987 [17]3 years ago
3 0

Answer:

lamar served 40

kira served 20

david served

i just spent like 15 minutes trying to figure this out and when i finally got it i was so mad because it was such a simple error i was making

Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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An automobile manufacturer is concerned about a possible recall of its best selling four-door sedan. If there was a recall there
goldfiish [28.3K]

Complete question is;

An automobile manufacturer is concerned about a possible recall of its best - selling four-door sedan. If there were a recall, there is a probability of 0.25 of a defect in the brake system, 0.18 of a defect in the transmission, 0.17 of a defect in the fuel system, and 0.40 of a defect in some other area.

(a) What is the probability that the defect is the brakes or the fueling system if the probability of defects in both systems simultaneously is 0.15?

(b) What is the probability that there are no defects in either the brakes or the fueling system?

Answer:

A) 0.27

B) 0.73

Step-by-step explanation:

Let B denote that there is a defect in the break system

Let T demote that there is a defect in transmission

Let F denote that there is a defect in the fuel system.

Let P denote that there is a defect in some other area.

Now, we are given;

P(B) = 0.25

P(T) = 0.18

P(F) = 0.17

P(O) = 0.40

A) We are given that probability of defects in both brakes and the fueling system simultaneously is 0.15.

Thus, it means; P(B ⋂ F) = 0.15

Now, we want to find the probability that the defect is the brakes or the fueling system. This is expressed as;

P(B ⋃ F) = P(B) + P(F) - P(B ⋂ F)

Plugging in the relevant values to give;

P(B ⋃ F) = 0.25 + 0.17 - 0.15

P(B ⋃ F) = 0.27

B) We want to find the probability that there are no defects in either the brakes or the fueling system.

This is expressed as;

P(B' ⋃ F') = 1 - P(B ⋃ F)

Plugging in relevant value;

P(B' ⋃ F') = 1 - 0.27

P(B' ⋃ F') = 0.73

7 0
2 years ago
Which of the following represents the equation below in intercept form?
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<h2><u><em>Answer:  A) f (x) = (x-5) (x+8) </em></u></h2><h2><u><em></em></u></h2>

<u><em /></u>

<h2><u><em>Step-by-step explanation: Please tell me if this is wrong! Bye! Have a good day!</em></u></h2>

3 0
2 years ago
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Answer:

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Step-by-step explanation:

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Deepak wrote out the steps to his solution of the equation StartFraction 5 Over 2 minus 3 x minus 5 plus 4 x equals negative Sta
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Answer:

Step 1 is incorrect.

Step-by-step explanation:

The given expression is :

\dfrac{5}{2}-3x-5+4x=\dfrac{-7}{4}

In step 1, Deepak rearranged the terms in order to simplify like terms together that is followed in step 2.

o, rearranging of the terms of an expression is commutative property and not distributive property.  The distributive property is generally applicable to multiplication and is given as:

x(y+z)=xy+yz

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Therefore, adding terms by changing their order is commutative property of addition and not distributive property. Step 1 instruction is wrong.

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