All categories

3 years ago

Jason sold half of his comic books and then bought 8 more. he now has 13. how many did he begin with ?

Mathematics

1 answer:

Soloha48 [4]3 years ago

7 0

He began with 10. Because if he bought 8 after selling half of his books and now his total is 13, then 13-8=5
so 5+5=10

You might be interested in

In the parallelogram shown, find x in terms of u and v.

Lubov Fominskaja [6]

Answer:

x = 2u -v

Step-by-step explanation:

X is the excess when we try to squeeze 2 u's on the side v,therefore

x = 2u -v

4 0

2 years ago

Write in slope intercept form of the equation of a line passing through (-1,4) and perpendicular to y=x-5.

andrew11 [14]

Answer:

y=-x+3

Step-by-step explanation:

The general slope-intercept equation of a line is y=mx+b where m is the slope and b represents the y intercept. y and x are simply a point the line passes through. In this case, y=x-5, meaning m=1 and b=-5.

In order to find the perpendicular slope, we should take the current slope's negative reciprocal. We have:

$-\frac{1}{1} =\\-1$

Therefore, our perpendicular slope is -1. We now have equation:

$y=-x+b$

We can plug in the known values of the point (-1,4) to solve for b.

$4=(-1)*(-1)+b\\4=1+b\\b=3$

If we now put what we found together, we have equation

$y=-x+3$

I hope this helps! Let me know if you have any further questions :)

7 0

3 years ago

A drop in temperature of 9 degrees overnight

Rina8888 [55]

Whats the question?

8 0

2 years ago

City Community College plans to increase its enrollment capacity to keep up with an increasing number of student applicants. The

aivan3 [116]

The given above may be modeled by the arithmetic sequence with initial value (I) 2200 and common difference (d) of 70. The number of applicants every year can be written by the equation,
at = a1 + (n - 1) x d
From the given above, n is equal to 4. This corresponds to the term which is 3 years from now.
at = 2200 + (4 - 1) x 70 = 2410
Thus, the enrollment capacity would be 2410 students.

3 0

3 years ago

Find slope (3,8) and (7,-7)

Sidana [21]

Answer:

-15/4

Step-by-step explanation:

slope = change in y / change in x = (-7 - 8) / (7 - 3) = -15/4

8 0

3 years ago