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3 years ago

Stella is doing her math worksheets. It takes her 1 hour 20 minutes to complete one worksheet with 12 questions.

Mathematics

1 answer:

Dmitry_Shevchenko [17]3 years ago

7 0

that would be four hours.

12x3=36

1 hour 20 minutes x3= 4 hours

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the gravitational attraction between two masses varies inversely as the square of the distance between them. if the attraction f

Marat540 [252]

Answer:

33 1/3 lb

Step-by-step explanation:

When the distance between them goes from 8 ft to 12 ft, it is 1.5 times what it was. Then the force will be multiplied by the inverse of the square of this:

(75 lb)×1/(1.5²) = 75/2.25 lb = 33 1/3 lb

At 12 feet apart, the attraction force is 33 1/3 pounds.

8 0

3 years ago

PLEASE HELP:

wlad13 [49]

76/2=38 so half her mothers age is 38. And since Moira is 3 less than the half of her mothers age, Moira is: 38-3=35

4 0

3 years ago

Determine if y varies directly with x. Give the constant of variation, when appropriate. (picture below)

maxonik [38]

Based on the given variation, y does not vary directly with x and the constant of variation are 8, 3.2 and 1.25 respectively.

<h3>Variation</h3>

y = k × x

where,

k = constant of proportionality

y = -40

x = -5

y = k × x

-40 = k × -5

-40 = -5k

k = -40/-5

k = 8

when,

y = 8 and x = 2.5

y = k × x

8 = k × 2.5

8 = 2.5k

k = 8/2.5

k = 3.2

when,

y = 5 and x = 4

y = k × x

5 = k × 4

5 = 4k

k = 5/4

k = 1.25

Learn more about variation:

brainly.com/question/6499629

#SPJ1

5 0

1 year ago

How do I get my answer

kupik [55]

Answer:

i think it is 5/8 6/12 3/4

Step-by-step explanation:

5 0

3 years ago

An airline weighed the carry-on luggage of all its

nikklg [1K]

Using the graph, it is found that 976 passengers had carry-on luggage that weighed less than 20 lb.

<h3>Graph:</h3>

The graph is not given in this problem, but an internet search indicates that the information it contains is as follows:

120 passengers carry luggage of 4 lb or less.

222 passengers carry luggage between 5 lb and 9 lb.

378 passengers carry luggage between 10 lb and 14 lb.

256 passengers carry luggage between 15 lb and 19 lb.

90 passengers carry luggage between 20 lb and 24 lb.

40 passengers carry luggage between 25 lb or more.

Hence, the number of passengers with luggage below 20 lb is:

$120 + 222 + 378 + 256 = 976$

976 passengers had carry-on luggage that weighed less than 20 lb.

A similar problem, also involving the use of graph, is given at brainly.com/question/25836450

7 0

2 years ago