Hi. In order to solve this word problem, you must make two equations and solve them together. To make it easy, we will let the letter "p" represent the pigs and the letter "c" for the chickens. So our first equation will be:
p + c = 13
Now to count the legs - we know that pigs have 4 legs and chickens have 2 so our next equation will be:
2c + 4p = 40
Using the first equation we see that c = 13 - p Now we insert this into the second equation and solve:
2x(13-p) +4 pm = 40
26 - 2p + 4p = 40
2p = 14
p = 7 (there are 7 pigs so now we know there are 6 chickens.
Answer: 7 pigs and 6 chickens
I hope this helps.
Take care,
Diana
Answer:
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Step-by-step explanation:
Given
per hour
Required
Determine the expression for the cost in x hours
Represent the cost with y
y is calculated using the following expression
Where x represent the number of hours.
Substitute values for the base amount of bike and the additional cost per hour
<em>So, the expression to determine the cost of bike in x hours is: </em><em></em>
The exterior angles on this diagram are angle 4 and angle 2.
We can see this because an exterior angle is the angle that forms a straight line with an interior angle, so that 180 - [interior angle] = [exterior angle].
Therefore, angles 4 and 2 are the only angles that form straight lines with interior angles, so they are thus the exterior angles.
I hope this helps!
The rate of change is 1/2
Because it’s the constant and whatever x is, it would always multiply by 1/2
(-2 + 0.8) ÷ (1²-1.3) =
(-1.2) ÷ (1-1.3)
(-1.2) ÷ (-0.3)
= 4
