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Lisa [10]
2 years ago
14

Line has equation 3x + y = 15 Find the gradient of the line.

Mathematics
1 answer:
inessss [21]2 years ago
5 0

Answer:

  -3

Step-by-step explanation:

We can add -3x to put the equation into slope-intercept form.

  y = -3x +15

The gradient of the line (slope) is the coefficient of x: -3.

The gradient is -3.

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A salesperson at a jewelry store earns 6% commission each week. Last week, he
erastova [34]

Answer:

5666

Step-by-step explanation:

5 0
3 years ago
Jake needs 7.59 meters of wood to complete a school project. He buys a 2.21−meter plank of wood and a 3.12−meter plank of wood.
Alexeev081 [22]

Answer:

2.26 meters

Step-by-step explanation:

7.59 meters - 2.21 meters - 3.12 meters = 2.26 meters

8 0
3 years ago
Morgan started the year with $615 in the bank and is saving $25 per week Kendall started with $975 and is spending $15 per week
gulaghasi [49]

Answer:

Step-by-step explanation:

You can represent Morgan's scenario with the expression, 25w + 615, and you can represent Kendall's scenario with the expression, 15w + 975.  To find out when they both have the same amount of money in their accounts, you set them equal to each other and solve for w:

25w + 615 = 15w + 975

25w = 15w + 360

10w = 360

w = 36

Morgan and Kendall will have the same amount of money after 36 weeks.

4 0
3 years ago
Expand the following equation:5x(3-7y)​
Leokris [45]

Answer:

Step-by-step explanation:

15x-35x

25x is the answer

3 0
3 years ago
Read 2 more answers
BRAINLIEST if correct
Mekhanik [1.2K]
Okay so median is the number in the middle and mean is when you add them all up and divide by how many numbers there are 

<span>20,28,35,40,132 

So 35 is the median 
and the mean is </span>20 + 28 + 35 + 132 + 40 = 255 / 5 = 51

the mean is a better way to represent the data because it does not just pick a number from the set of numbers it calculates the average 
7 0
3 years ago
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