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3 years ago

HELPPPPPPPPPPPPPPPP 6TH GRADE MATH AP EX HELPPPPPPPPPPPPPPPPPPP

Mathematics

2 answers:

PIT_PIT [208]3 years ago

6 0

The answer is A, 42 cubic units

madreJ [45]3 years ago

3 0

The answer is a ; you would use length x width x height or base x height so 8 * 1 1/2 * 3 1/2 = 42

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Ray buys bottles of water at $2 each and a large pizza at $13. The total cost was $21. what equation can be used to find the num

IgorLugansk [536]

Answer:

13 + 2x = 21 where x is the number of bottles of water

Step-by-step explanation:

pizza plus water = 21

13 + water = 21

Each water is 2 dollars

13 + 2x = 21 where x is the number of bottles of water

6 0

4 years ago

Solve fo x <br> -4(x+7)-6x-38 cam you show me how to do this

Nataly_w [17]

Answer:

first open the brackets -4x-28-6x-38

collect the like terms together

-4x-6x-28-38

-10x-66

divide both side by -10

x=6 3/5

Step-by-step explanation:

5 0

3 years ago

Last year Anthony earned $24,000. After a brief lay-off this year, Anthony's income is $18,500.

Mekhanik [1.2K]

The answer is 23% Decrease :)

7 0

4 years ago

The random variable x is the number of occurrences of an event over an interval of ten minutes. It can be assumed that the proba

mart [117]

Answer:

The probablility that there are 8 occurrences in ten minutes is 0.00518 or 0.5%.

Step-by-step explanation:

The distribution that represents the ocurrence of this events is the Poisson distribution.

The probability of having k events in a ten-minute-period can be expressed as:

$P(x=k)=\frac{ \lambda^ke^{-k}}{k!}$

being λ the mean number of occurrences in ten minutes.

The probablility that there are 8 occurrences in ten minutes can be calculated as:

$P(x=k)=\frac{ \lambda^ke^{-k}}{k!}\\\\P(x=8)=\frac{5.3^8e^{-8}}{8!}=\frac{(622596*0.000335463)}{40320}=0.00518$

The probablility that there are 8 occurrences in ten minutes is 0.00518 or 0.5%.

5 0

3 years ago

Suppose Clare labels the books at a constant speed of s books per minute. Write an equation that represents the relationship bet

iragen [17]

Answer:

75 minutes

50 minutes

Number of minutes to finish labelling = Total number of books labelled / Time taken to label them (speed of labelling)

Step-by-step explanation:

Complete question below:

Clare volunteers at a local library during the summer. Her work includes putting labels on 750 books.

How many minutes will she need to finish labeling all books if If she takes no breaks and labels:

a. 10 books a minute

b. 15 books a minute

Suppose Clare labels the books at a constant speed of books per minute. Write an equation that represents the relationship between her labeling speed and the number of minutes it would take her to finish labeling

Solution

a. 10 books a minute

Number of minutes to finish labelling all books at 10 books per minute = Total books / books labelled per minute

= 750 / 10

= 75 minutes

Number of minutes to finish labelling all books at 10 books per minute = 75 minutes

b. 15 books a minute

Number of minutes to finish labelling all books at 15 books per minute = Total books / books labelled per minute

= 750 / 15

= 50 minutes

Number of minutes to finish labelling all books at 15 books per minute = 50 minutes

c. The relationship between her labeling speed and the number of minutes is Total number of books labeled ÷ Time taken to label them

Number of minutes to finish labelling = Total number of books labelled / Time taken to label them (speed of labelling)

7 0

3 years ago