I think it would be A.
Maybe not because they are all negatives.
Answer:
a) She did mistake in Step 2
b) when she take -3y common then the term should be: -3y(x+5) instead she wrote -3y(x-5)
Step-by-step explanation:
We need to find problem in Ms J solution.
Ms J solution:
She did mistake in Step 2 when she take -3y common then the term should be: -3y(x+5) instead she wrote -3y(x-5)
Correcting the mistake:
Hey there!!
Let's summarize the total cost for mountain bikes.
Materials - $60
Labor - $90
Let's take the number of mountain bikes as 'x'.
Total cost = 60x + 60x
... 120x
Let's summarize the total cost for trail bikes.
Labors - $60
Materials - $60
Let's take the total number of trail bikes as 'y'.
Total cost = 90y + 60y
... 150y.
____________________________________________________
Total cost for materials = $2,400
Hence,
60x + 60y = 2,400
____________________________________________________
Total cost for labor = $3,150
Hence,
90x + 60y = 3,150
____________________________________________________
Now, we have 2 equations.
... 60x+60y = 2400
... 90x+60y = 3150
Now let's subtract both these equations.
... 30x = 3150-2400
... 30x = 750
... x = 750 / 30
... x = 250.
<em>Hence, the number of mountain bikes the company plans to manufacture is </em><u><em>250. </em></u>
Hope my answer helps!
what's the question? you only put a formula
Answer:
-23
Step-by-step explanation:
Common difference = 2nd term - 1 st term
= -8 - (-3)
= -8 + 3
= -5
To get the next term add (-5) to the previous term
5th term = (-18) + ( (-5) = -23