2 years ago

Solve for the values of x and y: y = 3x - 5 ........(i) and y = -x + 7 ........(ii)

Mathematics

1 answer:

Paraphin [41]2 years ago

6 0

Answer:

x= 3, y= 4

Step-by-step explanation:

y= 3x -5 -----(i)

y= -x +7 -----(ii)

Substitute (i) into (ii):

3x -5= -x +7

3x +x= 7 +5

4x= 12

x= 12 ÷4 (÷4 on both sides)

x= 3

Substitute x= 3 into (ii):

y= -3 +7

y= 4

You might be interested in

A box contains 100 colored chips; some are pink and some are blue. Milton chooses a chip at random, records the color, and place

Andrews [41]

Gotta be 40, since the sample probability of choosing a pink was 2/5, apply that to 100 chips and you get a predicted 40 pink chips in the bag

8 0

2 years ago

Read 2 more answers

Sedrtfyghujiklmnbvgcfdrt6yuiopl;kmnjbhgvfcdxswertyuioklkmjnhbgvfds

Rama09 [41]

Answer: hshebe rjwkshzbjskxicbxuxbxjdnxkskzbu

Step-by-step explanation:

3 0

2 years ago

On the map the distance between two towns is 10.5 centimeters. If 3 centimeters represents 90 miles what is the actual distance

Ainat [17]

Answer:

315 miles

Step-by-step explanation:

90 times 3 plus 45

3 0

3 years ago

Read 2 more answers

suppose x and y vary inversely and y=10 when x=4. write a function that models the variation then find y when x =90

ankoles [38]

X = k/y
4 = k/10
k = 4 x 10 = 40
Thus, x = 40 / y

90 = 40 / y
y = 40/90 = 4/9

4 0

2 years ago

Determine whether the equation has no solution, one solution, or infinitely many solutions. 7(12 – 2 x ) = 4(3 – 3 x )

Alex777 [14]

Answer: The equation has one solution

Step-by-step explanation: First , open the brackets

7( 12 - 2x ) = 4 (3 - 3x )

84 - 14x = 12 - 12x

collect the like terms

84 - 12 = - 12x + 14x

72 = 2x

Therefore divide through by 2

x = 72/2

x = 36

Therefore, the equation has only one solution

3 0

2 years ago