MATHEMATICS MIDDLE SCHOOL

Ken spent 1/5 of his allowance on a movie, 3/8 on snacks, and 2/7 on games. If his allowance was $20, how much did Ken have left? PLEASE HELP!

Answers

Answer 1

Answer:

Answer:

He left with $2.786.

Step-by-step explanation:

Consider the provided information.

Ken spent 1/5 of his allowance on a movie, 3/8 on snacks, and 2/7 on games.

It is given that his allowance was $20.

The money spent on movie is:

$(1)/(5)* 20=4$

He spent $4 for movie.

The money spent on snacks is:

$(3)/(8)* 20=7.5$

He spent $7.5 for movie.

The money spent on games is:

$(2)/(7)* 20=5.714$

He spent $5.714 for movie.

Subtract the money spent from total allowance as shown:

$20-4-7.5-5.714\n20-17.214\n2.786$

Hence, he left with $2.786.

Answer 2

Answer: 1/5 of 20 is $4. so 20-4=$16 remaining
3/8 of 16 is $7.50. So, 16-7.50= $8.50 remaining
2/7 of 8.5 is $2.43. So, 8.50-2.43 is $6.07

Answer: $6.07 is the amount ken has remaining

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What is ...

4x + 10= 2x - 6

Answers

4x + 10= 2x - 6
Subtract 2x on both sides

4x - 2x + 10 = 2x - 2x - 6

4x - 2x + 10 = -6

2x + 10 = -6

Subtract 10 on both sides

2x + 10 - 10 = -6 - 10

2x = -6 - 10

2x = -16

x = -8

when the solutions to each of the two equations below are graphed in the xy-coordinate plane, the graphs intersect at two places. Write the y-coordinates of the points of intersection in the boxes below in order from smallest to largest

y=2x

y+x^2 - 3

Answers

Answer:

Intersection points (1,2) and (-3,-6)

The y-coordinates of the points of intersection from smallest to largest is -6 to 2.

Step-by-step explanation:

Given : A system of equations $y=2x$ and $y+x^2 - 3=0$

To find : Write the y-coordinates of the points of intersection?

Solution :

Let, $y_1=2x$

and $y_2=3-x^2$

Now, we plot these two equations.

The graph of $y_1=2x$ is shown with red line.

The graph of $y_2=3-x^2$ is shown with blue line.

The solution to this system will be their intersection point.

The intersection points of these graph are (1,2) and (-3,-6).

Refer the attached graph below.

Therefore, The y-coordinates of the points of intersection from smallest to largest is -6 to 2.

The answer is -2 and 6

The elevation of your plot of land is 2 feet below sea level. You add 7 feet of dirt to your land. What is the new elevation of your land?

Answers

Answer: 5

Step-by-step explanation: -2+7=5

when the signs are different you subtract and when the signs are the same you add. Then you keep the sign of the bigger number.

The answer would be nine because you start at 2 and add 7

Help!!!! How do I solve this

Answers

Answer:

-11

Step-by-step explanation:

So, using the fact that one x intercept is 7, and the vertex is (-2,-4), we can solve for the other x intercept. While there are many ways to solve this, the way I prefer to do it is to realize that the x intercepts are the same distance away from the vertex. this means that if the vertex is at x = -2, and one x intercept is at x = 7, the other will be at -11, as 7+2 = -2+11.

I’m pretty sure that the other x-intercept is -7

What's 33 1/3 as a fraction