Solve the problems using systems of equations.
1 answer:
Step-by-step explanation:
Let the two numbers be x and y
x+y =5 ---1
x-y =-3 ---2
Rearrange equation 1
x =5-y
Substitute x in the second equation
(5-y)-y =-3
5-y-y =-3
5-2y =-3
Collect like terms
5+3 = 2y
8 = 2y
Divide both sides by the coefficient of y (2)
8/2 = 2y/2
4 = y
y= 4
Substitute y in equation 1
x+4 =5
Subtract 4 from both sides
x+4-4 = 5-4
x+0 = 1
x= 1
The two numbers are 1 and 4
You might be interested in
Answer:
0.5
Step-by-step explanation:
If one part = 1/17
Then, 8 parts = 1/16 x 8 = 1/2
1/2/as a decimal is 0.5
Hope this helps
Answer:
B.
Step-by-step explanation:
The percent increase when 7200 increases by 1800 is 25 %
Subtract the length from the perimeter because length + width = perimeter so 46ft - 11ft = 55ft
Answer:
Your simplified fraction would be 12 6/7 so I’d say *C* because that’s the closest to the simplified fraction
Step-by-step explanation:
im just explain