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Gnesinka [82]
3 years ago
15

Use the drop-down menus to choose steps in order to correctly solve 5(z + 6) – 2 = 9z for z.

Mathematics
2 answers:
shusha [124]3 years ago
5 0
Solve for z:
5 (z + 6) - 2 = 9 z

5 (z + 6) = 5 z + 30:
5 z + 30 - 2 = 9 z

Add like terms. 30 - 2 = 28:
5 z + 28 = 9 z

Subtract 9 z from both sides:
(5 z - 9 z) + 28 = 9 z - 9 z

5 z - 9 z = -4 z:
-4 z + 28 = 9 z - 9 z

9 z - 9 z = 0:
28 - 4 z = 0

Subtract 28 from both sides:
(28 - 28) - 4 z = -28

28 - 28 = 0:
-4 z = -28

Divide both sides of -4 z = -28 by -4:
(-4 z)/(-4) = (-28)/(-4)

(-4)/(-4) = 1:
z = (-28)/(-4)

The gcd of 28 and -4 is 4, so (-28)/(-4) = (-(4×7))/(4 (-1)) = 4/4×(-7)/(-1) = (-7)/(-1):
z = (-7)/(-1)

(-7)/(-1) = (-1)/(-1)×7 = 7:
Answer:  z = 7
sdas [7]3 years ago
5 0

Answer:

Drop Down 1: 5z+28=9z

DD #2: 28=4z

DD #3: 7=z

Step-by-step explanation:

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Someone please answer!!
LUCKY_DIMON [66]

Answer:

40°

Step-by-step explanation:

180-(57+43)=100°

which mean the angle at the top =100°

180-100=80°

x=80/2

x=40

7 0
2 years ago
I need for this problem. Help please!​
Ray Of Light [21]

Answer:

⇒ x = 3.4975

Step-by-step explanation:

Assume cost of each figure = x

Given:

32x + 2.32 = 114.24

Find:

Value of x

Computation:

⇒ 32x + 2.32 = 114.24

⇒ 32x = 114.24 - 2.32

⇒ 32x = 111.92

⇒ x = 111.92 / 32

⇒ x = 3.4975

5 0
3 years ago
The University of Southern California is located about 2.5 miles west and about 2.8 miles south of downtown Los Angeles. Suppose
Jlenok [28]
If x represents distance measured east of downtown, and y represents distance measured north of downtown, the circle of radius 40 centered at (-2.5, -2.8) will have an equation of the form
  (x - h)² + (y - k)² = r²
where the center is (h, k) and the radius is r. The locus of points 4 miles from USC will satisfy the equation
  (x +2.5)² + (y + 2.8)² = 1600
3 0
2 years ago
Solve for x. (RIGHT ANSWER WILL GET BRAINLIEST)
puteri [66]

Answer:

67

Step-by-step explanation:

The angle with x in it is a vertical angle to the other one labeled & the right angle put together.

Therefore:

48 + 90 = 2x + 4

Solve for x:

138 = 2x + 4

138 - 4 = 2x + (4-4)

134 = 2x

134/2 = 2x/2

X = 67

Hope this helps! Have a great day!

7 0
3 years ago
5. Abdi has 12 shirts, 8 pairs of jeans, and 5 pairs of shoes.
aev [14]

Answer:

Shirts = 12/25 = 48%

Jeans = 8/25 = 32%

Shoes = 5/25 = 20%

Step-by-step explanation:

7 0
3 years ago
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