Answer:
x = 2
y = -1
Step-by-step explanation:
Make the coefficient of x the same
Multiply the first equation by 29
31x + 29y = 33 becomes
899x + 841y = 957
Multiply the second equation by 31
29x + 31y = 27 becomes
899x + 961y = 837
Subtract the equations
(899x + 841y) - (899x + 961y) = 957 - 837
(899x - 899x) + (841y - 961y) = 120
841y - 961y = 120
-120y = 120
y = 120/-120 = -1
Substitute the value of y into both equations to find the value of x and check its right.
31x + 29y = 33
31x + 29(-1) = 33
31x - 29 = 33
31x = 33 + 29
31x = 62
x = 62/31 = 2
29x + 31y = 27
29x + 31(-1) = 27
29x - 31 = 27
29x = 27 + 31
29x = 58
x = 58/29 = 2
Answer:
Step-by-step explanation:
Given
Required
Solve
Turn division to multiplication
Answer:
9 cm
Step-by-step explanation:
Length = 72 / (4 x 2)
Length = 72 / 8
Length = 9 cm
<em>Hope that helps! :)</em>
<em></em>
<em>-Aphrodite</em>
Answer:
The length of rectangle is 16 meters and the width of rectangle is 7 meters
Step-by-step explanation:
Let
L -----> the length of the rectangle
W ---> the width of the rectangle
we know that
The perimeter of rectangle is equal to
----> the perimeter of a rectangle is twice the sum of its length and its width
we have
so
simplify
-----> equation A
----> equation B
substitute equation B in equation A and solve for W
Find the value of L
therefore
The length of rectangle is 16 meters and the width of rectangle is 7 meters
Answer:
y=mx+c
Step-by-step explanation: