4x+2y=10 Equation 1
x-y=13 Equation 2
Solving by substitution method.
Isolate x from equation 2.
x=y+13
Substitute value of x in equation 1
4(y+13)+2y=10
4y+52+2y=10
6y+52=10
6y=-42
y=-7
Now substitute value of y in x=y+13
x=-7+13
x=6
Answer: (6,-7)
Answer:
Birds
Gerbils
Fish
Hamsters
Step-by-step explanation:
From the question we are told that:
Sales
Number of birds
Number of gerbils
Number of fish
Number of hamsters
Generally the frequency for birds is mathematically given b
Generally the frequency for Gerbils is mathematically given b
Generally the frequency for fish is mathematically given b
Generally the frequency for fish is mathematically given b
Answer:
x=5
y=1
Step-by-step explanation:
The substitution method is considered easier because of its simplification.
2x-3y=7 (1)
x+2y=7 (2)
considering equation (2),
x = 7 - 2y (3)
using the value of "x" in (1)
2 (7-2y) - 3y=7
14 - 4y- 3y = 7
14 - 7y = 7
7y = 14 - 7
7y = 7
y = 1 (4)
substituting this value of "y" in (3)
x = 7- 2(1)
x = 5
Multiply both sides by 2.54.
Multiply both sides by x.
x = 60.96
Hence, Aaron needs 60.96 centimeters of wire.
X + 8x = 81
9x = 81, x = 9
y = 8(9), y = 72
Solution: (9, 72)