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Ksju [112]
3 years ago
12

I need help ASAP!! I just need help with problem one quick!

Mathematics
1 answer:
Misha Larkins [42]3 years ago
6 0

Answer:

a. 5

b. -5

c. 13

d. -5

e. -13

f. 13

g. 5

h. -13

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A total of 638 tickets were sold for the school play. They were either adult tickets or student tickets. There were 62 fewer stu
UNO [17]
You need to subtract 638 and 62 and that will give 576
5 0
3 years ago
Solve the following equation simultaneously 1/x-5/y=7, 2/x+1/y=3​
maria [59]

Answer:

  (x, y) = (1/2, -1)

Step-by-step explanation:

Subtracting twice the first equation from the second gives ...

  (2/x +1/y) -2(1/x -5/y) = (3) -2(7)

  11/y = -11 . . . . simplify

  y = -1 . . . . . . . multiply by y/-11

Using the second equation, we can find x:

  2/x +1/-1 = 3

  2/x = 4 . . . . . . . add 1

  x = 1/2 . . . . . . . multiply by x/4

The solution is (x, y) = (1/2, -1).

_____

<em>Additional comment</em>

If you clear fractions by multiplying each equation by xy, the problem becomes one of solving simultaneous 2nd-degree equations. It is much easier to consider this a system of linear equations, where the variable is 1/x or 1/y. Solving for the values of those gives you the values of x and y.

A graph of the original equations gives you an extraneous solution of (x, y) = (0, 0) along with the real solution (x, y) = (0.5, -1).

6 0
2 years ago
PLEASE HELP!! WILL GIVE BRAINLIEST An artist has been commissioned to make a stained glass window in the shape of a regular octa
pav-90 [236]
The length of each side of octagon is 1.66 inches.
3 0
2 years ago
Help please <br> If steak costs $8.45 per pound, what will be the total cost of 0.8 pounds of steak?
krok68 [10]

Answer:

$6.76

Step-by-step explanation:

Multiply 8.45 by 0.8 and you will get 6.76

5 0
2 years ago
Read 2 more answers
The midpoint of UV is (5, -10). The coordinates of one endpoint are U(3,6). Find the coordinates of endpoint V.
Grace [21]

The answer is (7, -26) for The second endpoint.  

We'll call the midpoint M. In order to find this, we must first note that to find a midpoint we need to take the average of the endpoints. To do this we add them together and then divide by 2. So, using that, we can write a formula and solve for each part of the k coordinates. We'll start with just x values.

(Ux + Vx)/2 = Mx

(Vx + 3)/2 = 5

Vx + 3 = 10

Vx = 7

And now we do the same thing for y values

(Uy + Vy)/2 = My

(Vy + 6)/2 = -10

Vy + 6 = -20

Vy = -26

This gives us the final point of (7, -26)

6 0
2 years ago
Read 2 more answers
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