Answer:
27 Chickens
Step-by-step explanation:
<em>Represent the chicken with A and the cows with B</em>
Given
A has 2 legs and B has 4; So:
Required
Determine A and B
Make B the subject of formula in the first equation
Substitute 30 - A for B in the second equation
Open the bracket
Collect Like Terms
Divide through by -2
<em>Hence, the farmer has 27 chickens</em>
Distributive property says 4 * a and 4 * -1 so 4a - 4 - 5 = 3a + 7
Now do the simple subtraction
-4 - 5 = -9
Then add 9 and subtract 3a <span>Remember: Always do the opposite operation to <span><em>both
</em><em />sides. So you have a = 16<em>
</em></span></span>
Answer:
31.6
Step-by-step explanation:
x / 13 = 17 / 7
7x = 221
x = 221 / 7
x = ~31.6
There :) is the answer for ur question
Answer:
y=4x+5
Step-by-step explanation:
You have your mx already: (mx is slope)
y=4x
And you have your b already: (b is y-intercept)
+5
Combine equations: (Solve)
y=4x+5
Hence, the correct answer is y=4x+5