Tom and jasper have the same percentage of blue marbles in their bags of marbles. Tom had five blue marbles and 20 total marbles. jasper has 12 blue marbles. how many of jasper marbles are not blue?

Answers

Answer 1
Answer: First find the persentage of blue marbles
5/20 = 0.25
0.25 = 25%

Next find the persentage for the other marbles
100% - 25% = 75%

Now take 75% of Jasper's 12 marbles
12*0.75 = 9 marbles are not blue

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Imamu Pays $30 Each Months For His Gym Membership. What Is The Change In The Amount Of Money In His Account After 2/3 Of A Year?

Answers

The change in the amount of money in his account after two-third of a year is $240.

Given that,

  • The monthly payment for his gym membership is $30.
  • Now the amount of money after two-third should be determined i.e. of 8 months.

Based on the above information, the change in the amount should be

= \$30 * 8

= $240

Therefore we can conclude that the change in the amount of money in his account after two-third of a year is $240.

Learn more: brainly.com/question/13024617

The answer is $240 because 2/3 in a year is 8 months so just multiply 3*8 which give you 24 and just add a zero so your answer is 240.

Let f(x)=2/x-3. Find f^-1(x)

Answers

Answer:

Two questions:

Question 1: f^(-1)(x)=? given f(x)=(2)/(x)-3.

Answer 1: f^(-1)(x)=(2)/(x+3)

Question 2: f^(-1)(x)=? given f(x)=(2)/(x-3).

Answer 2: f^(-1)(x)=(2)/(x)+3

Step-by-step explanation:

So f^(-1) is used in most classes to represent the inverse function of f.

The inverse when graphed is a reflection through the y=x line. The ordered pairs (a,b) on f implies (b,a) are on f^(-1).

This means we really just need to swap x and y.

Since we want to write as a function of x we will need to solve for y again.

Question 1:

y=(2)/(x)-3

Swap x and y:

x=(2)/(y)-3

We want to solve for y.

Add 3 on both sides:

x+3=(2)/(y)

Make the left hand side a fraction so we can cross-multiply:

(x+3)/(1)=(2)/(y)

Cross multiply:

y(x+3)=1(2)

Simplify right hand side:

y(x+3)=2

Divide both sides by (x+3):

y=(2)/(x+3)

So f^(-1)(x)=(2)/(x+3).

Question 2:

y=(2)/(x-3)

Swap x and y:

x=(2)/(y-3)

Make left hand side a fraction so we can cross multiply:

(x)/(1)=(2)/(y-3)

Cross multiply:

(y-3)x=1(2)

We have to distribute here:

yx-3x=2

Add 3x on both sides:

yx=2+3x

Divide boht sides by x:

y=(2+3x)/(x)

You could probably stop here but you could also simplify a little.

Separate the fraction into two terms since you have 2 terms on top bottom being dividing by x:

y=(2)/(x)+(3x)/(x)

Simplify second fraction x/x=1:

y=(2)/(x)+3

So f^(-1)(x)=(2)/(x)+3.

Last year Golden State Warriors won 80% of the first 15 matches. Then they won the rest of the three matches. What percent of all matches did they win?

Answers

Answer:

83.3%

Step-by-step explanation:

Games won:  80% of 15 plus 3 more:  12 + 3 = 15 games won out of 15 + 3 games played.  

Percentage of matches won:  15/18 = 0.833333 ...   →  83.3%

What is the slope of a line that passes through (1,77) and (3,40)

Answers

Answer:

-18.5

Step-by-step explanation:

find the gradient

40-77=-37

3-1=2

-37/2=-18.5

Equivalent ratios 78:100 to 39:50

Answers

Well, they are equivalent, but I'm not sure if that's exactly what you're asking. :)

Subtract 8 feet from 9 yards

Answers

there are 3ft in a yard so 9*3 is 27 so 27 minus 8 is 19 so 19 is your answer