# −1/2(7z+4)+1/5(5z−15)

Step-by-step explanation:

-7z/2 - 2 + z -3

=-5 - 5z/2

## Related Questions

Ava has 20-foot length of wire.She cuts the wire into 6 pieces of equal length.The length of each piece of wire will fall between which two whole-number lengths?

3-foot lengh

Step-by-step explanation:

20/6=3.333

round this number and get 3-foot lengh

Santa has lots of mixed up socks in his sack! If he has 6 green socks, 4 gold socks, 8 black socks and 2 red socks, what is the minimum he needs to pull out of his sack to get a matching pair?

Based on the problem above, the minimum he needs to pull out of his sack to get a matching pair is 5

What is the solution of the following system? -2x-y=1
-4x-2y=-1

A. infinitely many solutions
B. no solutions
C. (3,8)
D.(-3,-8)

(B) no solution.

Step-by-step explanation:  We are given to find the solution of the following system of equations :

From equation (i), we have

Substituting the value of y from equation (iii) in equation (ii), we get

which can never be possible.

Thus, the given system of equations have no solution.

Option (B) is CORRECT.

B

when we multiply the equation and subtract equatio 2 from equation 1 the result is 0=-4 and 0=2

Simplify: 3x2+4(2y+x2)3x2+4(2y+x2)

3x2+4(2y+x2)
3x2+8y+4x2
7x^2+8y

7x^2 + 8y is the correct answer Hope this helps!

G over 2+23 when g = 6 is what

6 over 25

Step-by-step explanation:

this can't be simplified, but you pretty much just put 6 over 2 + 23 and then add it together.

0.23

Step-by-step explanation:

6/26

divide 6 by 26

0.230 or 0.230769231

what is an equation of the line that passes through the point(-2,1) and is parallel to the line whose equation is 4x-2y=8?​

Step-by-step explanation:

ANS:

y = 2x − 5 y = mx + b

−1 = 2(2) + b

−5 = b

The Pyraminx is a Rubik's cube-type toy in the shape of a tetrahedron. The Pyraminx shown below has edges 15\,\text{cm}15cm long and vertical height h=12.2\,\text{cm}h=12.2cm. The triangle drawn with dashed lines is a right triangle. What is the distance rr?

8.727

Step-by-step explanation:

Since the below edge, d = 15 cm, and the height, h = 12.2 cm, we will use the Pythagorean  theorem to find the distance r.

With a short time remaining in the​ day, a delivery driver has time to make deliveries at 7 locations among the 9 locations remaining. How many different routes are​ possible?

The different possible routes are​ :

181440

Step-by-step explanation:

We are asked to find the number of different routes that are possible to choose  7 locations among the 9 locations remaining.

This means that we have to chose the locations and also we have to arrange them in different orders according to the different order of locations.

The method we have to use is a method of permutation.

When we have to chose and arrange r items out of a total of n items then the formula is given by:

Here we have: n=9

and r=7

Hence, the different possible routes are:

181440

What is the answer to this
24.3+8+10.5

42.8

Step-by-step explanation: