A first number plus twice a second number is 14 twice the first number plus the second totals 31
2 answers:
X+2y=14
2x+y=31
x=-2y+14
-4y+28+y=31
-3y=3
y=-1
x-2=14
x=16
The first number is 16 and the second number is -1
You might be interested in
Answer:
the answer is 2.1
Step-by-step explanation:
using a calculator:
1. type in 4.2
2. multiply 4.2 by 1/2
3. the answer will then be shown as 2.1
Answer:
x=116°
Step-by-step explanation:
180° - 64° = 116°
Answer:
3 in3
Step-by-step explanation:
1/2 x 1/2 x 1/2=1/8
1/8 x 24= 3
Answer:
Step-by-step explanation:
Let w = width
Then 3w = length
A= LW
108 = (3w)(w)
108 = 3w2
36 = w2
6 = w 18 = length Perimeter = 2(6) + 2(18) = 48 in
Answer:
18
Step-by-step explanation:
3^4=9*9=81
14-5=9
81/9=9
9*2=18