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Ganezh [65]
1 year ago
5

Which points are on the graph of the equation -3x + 6y + 5 = -7?

Mathematics
1 answer:
LiRa [457]1 year ago
3 0

Answer:

(-4,-4) (0,-2) (4,0) (2,8)

Step-by-step explanation:

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A parcel delivery company delivered 103,000 packages last year, when its average employment was 84 drivers. This year the firm h
Aleksandr [31]

Answer: 4.85%

Step-by-step explanation: productivity = parcel delivered / number of drivers.

At when parcel delivered was 103, 000 the average number of drivers was 84 thus making the productivity to be

103,000/ 84 = 1226.19

At when the parcel delivered was 112, 800 the average number of drivers was 96 thus making the productivity to be

112, 000/ 96 = 1166.67

Thus the change in productivity = 1226.19 - 1166.67 = 59.52.

Initial productivity = 1226.19

final productivity = 1166.67

% change in productivity = change in productivity / initial productivity * 100

% change in productivity = 59.52 /1226 * 100

% change in productivity = 4.85%

8 0
2 years ago
The diameter of a standard basketball is 9.5 inches. If the basketballs are covered in rubber, what is the minimum amount of rub
Softa [21]

Answer:

The minimum amount of rubber needed is 1,134 square inches

Step-by-step explanation:

we know that

The surface area of a sphere (basketball ) is given by the formula

SA=4\pi r^{2}

we have

r=9.5/2=4.75\ in ----> the radius is half the diameter

\pi=3.14

substitute

SA=4(3.14)(4.75)^{2}=283.385\ in^2

Multiply by 4 (because are four basketballs)

283.385(4)=1,133.54\ in^2

therefore

The minimum amount of rubber needed is 1,134 square inches

6 0
2 years ago
Ashley’s math average decreased 12 points to 78. Then she completed an extra credit assignment and raised her final average by 5
andriy [413]

What was her starting average? 93 points

How much did her average increase or decrease, overall? 5 points

What was her final average? 83 points

3 0
2 years ago
Read 3 more answers
Lyles height is twice the difference of the height of his brother, harry, and the height of his dad, vince. Lyle is 2 1/2 feet t
Greeley [361]

Answer:

5 = 19 - 4v

Step-by-step explanation:

We are given the following in the question:

\text{Lyle's height} = 2( \text{Harry's height - Vince's height})

Let l be Lyle's height, h be Harry's height and v be Vince's height.

Thus, we can write:

l = 2(h-v)

Lyle's Height =

2\dfrac{1}{2}\text{ feet}

Harry's height =

4\dfrac{3}{4}\text{ feet}

Putting the value in the equation:

2\dfrac{1}{2} = 2(4\dfrac{3}{4}- v)\\\\\dfrac{5}{2} = \dfrac{19}{2} - 2v\\\\5 = 19 - 4v\\4v = 19-5\\\\v = \dfrac{14}{4}\\\\v = 3\dfrac{2}{4} = 3\dfrac{1}{2}

Thus, Vince's height is 3.5 feet.

7 0
2 years ago
What is the justification for each step in the solution of the equation?
podryga [215]

Here are the following justifications:

Given: -2 (x-1) +12=4x-6


Distribute property = -2x+2+12=4x-6


Combine like terms= -2x+14=4x-6

 

Transpose = -2x = 4x – 20

 

Addition or Subtraction Property of Equality = -6x = -20

 

Division property of equality = x = 20/6

 

Simplify = x = 10/3

7 0
2 years ago
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