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docker41 [41]
3 years ago
7

How do you solve simultaneous equations

Mathematics
1 answer:
Sladkaya [172]3 years ago
7 0

Step 1: Multiply each equation by a suitable number so that the two equations have the same leading coefficient.

Step 2: Subtract the second equation from the first.

Step 3: Solve this new equation for y.

Step 4: Substitute y = 2 into either Equation 1 or Equation 2 above and solve for x.

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I'LL GIVE BRAINLIEST....PLZ HELP ME!!
Ad libitum [116K]

Answer:

Step-by-step explanation:

y = 5x + 2.....so we will sub in 5x + 2 for y, back into the other equation

3x = -y + 10

3x = - (5x + 2) + 10

3x = -5x - 2 + 10

3x + 5x = 8

8x = 8

x = 8/8

x = 1

y = 5x + 2

y = 5(1) + 2

y = 5 + 2

y = 7

check it... (1,7)

3x = -y + 10                           y = 5x + 2

3(1) = -7 + 10                          7 = 5(1) + 2

3 = 3 (correct)                       7 = 7 (correct)

so ur solution is : x = 1 and y = 7...or (1,7) <=====

3 0
3 years ago
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Use the table to find the relationship between the two quantities.
olchik [2.2K]

Answer:

the answer is 3

Step-by-step explanation:

3 0
3 years ago
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In one soccer season, a goalie saved 150 out of
Maru [420]

Answer:

0.81 (rounded to the nearest hundredth) & 81%

Step-by-step explanation:

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7 0
2 years ago
Jasmine is in a bicycle race. She has already biked 10 miles and is now biking at a rate of 18 miles per hour. Write and equatio
Dafna1 [17]

Answer:

y = 18x + 10

slope = 18

y-intercept = 10

Step-by-step explanation:

The situation given in the problem is linear and can be represented using slope-intercept form of a linear equation: y = mx + b, where 'm' is equal to the slope, 'b' is equal to the y-intercept, 'x' is the number of hours and 'y' is the total number of miles.  

Given that Jasmine has already biked 10 miles, her initial value, or y-intercept would be 10.  Since she is now biking at a rate of 18 miles per hour, her rate of change, or slope, would be 18.  

Using these values for 'm' and 'b': y = 18x + 10

6 0
3 years ago
If the angles of a quadrilateral are 140, 80, 60, 80 then what type of quadrilateral could it be?
Lubov Fominskaja [6]
Im sorry but, a friend told it was a rectangle, im sure if thats  a good enough answer but if it isn't im sorry

3 0
3 years ago
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