Write two equations with the given information:
1) x = 2y ( x is twice the value of y)
2) x + y = 42
Replace x in the second equation with the value of x in the first equation:
2y + y = 42
Simplify:
3y = 42
Divide both sides by 3:
y = 42 / 3
y = 14
Now we have the value for Y, solve for x by replacing y with 14:
x = 2y
x = 2(14)
x = 28
X = 28 and y = 14
The common denominator would be 6. Since, the least common multiple of 3 and 6 is 6.
3:
3, 6, 9
6:
6, 12, 18
Least common multiple is 6
Answer:
440 seagulls
Step-by-step explanation:
Total number of seagulls in flock = Number of seagulls have banded / Percentage of seagulls have banded
Total number of seagulls in flock = 22 / 5%
Total number of seagulls in flock = 22 / 0.05
Total number of seagulls in flock = 440 seagulls
Answer:
Step-by-step explanation:
2x^2 = 28 - x in standard form is 2x^2 + x = 28
Factoring, we have:
x(2x + 1) = 28
