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Harlamova29_29 [7]
3 years ago
9

What method can be used to write the equation of a line in slope-intercept form given two points?

Mathematics
2 answers:
stira [4]3 years ago
4 0

Answer:

The Answer is the first one, A                                            

Step-by-step explanation:

ioda3 years ago
4 0
<h2>Answer:</h2>

A∅ω∅

Step-by-step explanation:

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a mechanic worked 20 hours. another mechanic worked 15 hours. together they charged a total of $1950. what was the rate charged
Natasha_Volkova [10]

Answer: The mechanics both charged $70 and $45 per hour respectively

Step-by-step explanation: We shall start by calling the mechanics hourly rates x and y respectively. So if one worked for 20 hours and charged 20 times x dollars, and the other one worked for 15 hours and charged 15 times y dollars, totalling 1950 dollars, we can write the following expression,

20x + 15y = 1950

Also, if the sum of the two rates was 115 dollars, that means for working for an hour only, they both would earn

x + y = 115

We now have a pair of simultaneous equations

20x + 15y = 1950 --------(1)

x + y = 115 ------------------(2)

We shall use the substitution method for this problem.

From equation (2), make x the subject of the equation

x = 115 - y

Substitute for the value of x into equation (1)

20(115 - y) + 15y = 1950

2300 - 20y + 15y = 1950

By collecting like terms we now have

2300 - 1950 = 20y - 15y

(Note that when a negative value crosses to the other side of the equation, it becomes a positive value and vice versa)

350 = 5y

Divide both sides of the equation by 5

70 = y

We now substitute for the value of y into equation (2)

x + y = 115

x + 70 = 115

Subtract 70 from both sides of the equation

x = 45.

Therefore, the rate they charged per hour were $45 and $70 respectively.

7 0
3 years ago
Write a whole number that rounds to 9000 if we are rounding to the nearest thousand
Liono4ka [1.6K]
9001

Or any whole number less than 9500
4 0
3 years ago
What is the value of x in the diagram?
Molodets [167]

The answer would be 42 degrees because the total of a triangle is 180 degrees. So you would subtract 180 and 42 (180-42) and that gives you 138 and since the two angles that are touching are the same

6 0
3 years ago
If a Canada goose completes a $2400$-mile migration in exactly $13$ days and $8$ hours, then what was her average speed for the
SOVA2 [1]
7.69 mph.
Hope this helps!!!
7 0
2 years ago
Read 2 more answers
Please someone actually help with this I don't understand how.​
tigry1 [53]

Answer:

Scatter plot

Step-by-step explanation:

Answer is 5

8 0
3 years ago
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