I NEED HELP SOOOO MUCH IM SOOO LOST I WILL GIVE A BRAINLIEST TO THE PERSON WHO INCLUDES ALL WORK, CORRECT ANSWER,AND EVERYTHING
2 answers:
We start by using the distributive property to expand the terms 
and 
. When we do, we obtain 
and 
.
Putting those back into our equation, we have:
Next, we combine all of the constants on either side:
Finally, we want to get the variable a by itself on one side of the equation, so we perform the following steps to isolate it:
(Add 20 to both sides)
(Subtract 3a from both sides)
(Divide both sides by 2 to isolate a)
So, we obtain our answer of
.
Putting those back into our equation, we have:
Next, we combine all of the constants on either side:
Finally, we want to get the variable a by itself on one side of the equation, so we perform the following steps to isolate it:
So, we obtain our answer of
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Answer:
a=
Step-by-step explanation:
As we have 2 of the angles, we can find the third. The measure of the third angle is 45 degrees.
As this is the same measure as the other, that means that the side length will be the same.
Now was have two side lengths of 17 in a right triangle, so we can use the Pythagorean theorem to find a.
Recall that the pythagorean theorem states:
In this case, a is 17, b is 17, and c is a
Knowing this, we can input our value into this formula and solve for a.
we know that Bob can do the whole job in 14 hours, how much of the work has he done in 1 hour only? well since he can do the whole lot in 14 hours in 1 hour he has only done 1/14 th of the job.
we know that James can do it in 18 hours, a bit slower, so in 1 hour he has done only 1/18 th of the job.
let's say it takes both of them working together say "t" hours, so in 1 hour Bob has done (1/14) of the work whilst James has done (1/18) of the work, the whole work being t/t or 1 whole, so for just one hour that'd 1/t done by both Bob and James.