⇒ Solution 4x +7y =6
1) <span>
Subtract 7y from each side</span><span>4x=6−7y
</span>
2) <span>
Divide each side by 4</span>x=
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6x + 5y =201)
<span>
Subtract <span>
5y</span>
from each side</span><span>6x=20−5y
</span>
2) <span>
Divide each sides by 6</span>x=
3) <span>
Factor out the common term 5</span>x=
Answer:
x = 2
Step-by-step explanation:
= ( cross- multiply )
5(x + 1) = 3(x + 3) ← distribute parenthesis on both sides
5x + 5 = 3x + 9 ( subtract 3x from both sides )
2x + 5 = 9 ( subtract 5 from both sides )
2x = 4 ( divide both sides by 2 )
x = 2
Answer:
You have a chance of getting any of those.
Step-by-step explanation:
If you were to flip the first coin, and it would be either heads or tails 50% chance.
If you flipped the second coin, without cancelling the first, it would be 25% chance
If you flipped the third coin, without cancelling the first it would be 12.5% chance
(this is all for heads)
Answer:
4m units squared
Step-by-step explanation:
Area = Length x Width
Area = m x 4
Area = 4m units squared
You can solve this by using the system of equations.
Jan - 4.95 = 2H + 3C
Wayne - 5.45 = 3H + 2C
Use elimination.
-3(2H + 3C = 4.95)
2(3H + 2C = 5.45)
Solve. And you'll get:
-6H + (-9C) = -14.85
6H + 4C = 10.9
Cross out -6H and 6H because they cancel out. And you're left with:
-9C = -14.85
4C = 10.9
Add -9C with 4C, and -14.85 with 10.9.
-5C = -3.95
Divide each side with -5.
C = $0.79
Now to figure out what H is, just substitute the C in one of the equations with 0.79.
5.45 = 3H + 2(0.79)
5.45 = 3H + 1.58
-1.58 -1.58
3.87 = 3H
3.87/3 = 3/3(H)
1.29 = H
Finished!