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3 years ago

You can find the constant of proportionality by finding the ratio of

Mathematics

1 answer:

Musya8 [376]3 years ago

7 0

Answer:

The constant of proportionality is the ratio between two directly proportional quantities. Two quantities are directly proportional when they increase and decrease at the same rate. The constant of proportionality k is given by k=y/x where y and x are two quantities that are directly proportional to each other.

Step-by-step explanation:

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A bag contains 6 purple marbles and 7 white marbles. One marbles is drawn at random and not replaced. Then a second marble is dr

KonstantinChe [14]

Answer: 7/26

Step-by-step explanation:

Number of purple marbles = 6

Number of white marbles = 7

Total number of marbles = 13

The probability of first drawing a white marble will be = 7/13

The probability of drawing a purple marble the second time will be = 6/12 = 1/2

The probability that the first marble is white and the second one is purple will now be:

= 7/13 × 1/2

= 7/26

Note that since there are 13 marbles, when the first purple marble is drawn, there'll be 12 marbles left.

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3 years ago

Joe has a bag of candy with 70 pieces of candy in it. He wants to split the candy evenly between himself and his 4 friends. Whic

morpeh [17]

Answer:

C. 70/5

Step-by-step explanation:

Since there are 5 people in total and 70 pieces of candy. To find how much candy each person gets we can do 70/5.

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4 years ago

Help now plz just help plzzz

zalisa [80]

Answer:

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Step-by-step explanation:

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3 years ago

Find the solution of the following system of equations -5+2y=9 3x+5y=7

Rudiy27

Answer:

$x=-\frac{28}{3}\\\\y=7$

Step-by-step explanation:

Given the system of equations:

$\left \{ {{-5+2y=9} \atop {3x+5y=7}} \right.$

You can pply Substitution method:

First you must solve for "y" from the first equation:

$-5+2y=9\\\\2y=9+5\\\\2y=14\\\\y=\frac{14}{2}\\\\y=7$

Therefore, the second and final step to solve the system of equations is to substitute the value of "y" into the second equation and solve for "x":

$3x+5(7)=7\\3x=7-35\\\\x=-\frac{28}{3}$

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3 years ago

How much greater is 28.95 than 14.25?

patriot [66]

28.95 is 14.7 greater than 14.25

7 0

3 years ago