<span>Let +a+ = number of trumpet players
Let +b+ = number of saxophone players
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(1) +a+=+b+-+10+
(2) +b+=+3a+
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Substitute (2) into (1)
(1) +a+=+3a+-+10+
(1) +2a+=+10+
(1) +a+=+5+
and
(2) +b+=+3%2A5+
(2) +b+=+15+
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There are 5 trumpet players
and 15 saxophone players</span>
If we divide 18 by 3, we get 6. we then square 6 and get 36.
Answer:
$50.85
Step by step explanation:
We have been given that Jessica's Furniture Store buys a couch at a wholesale price of $113.00 and the markup rate at Jessica's Furniture Store is 45%.
We can find mark-up for the couch by finding 45% of 113.


Therefore, mark-up for the couch will be $50.85.
Answer:
5
Step-by-step explanation:
4x +5= 5x
Then solve the linear eqn
Answer:
1. 11.2
2. -1.4
3. 12
Step-by-step explanation:
The equation of the line that passes through the points A(8,0) and B(3,7) is

To find the y-intercept, plug into this equation x=0:

Two parallel lines have the same slope, so the equation of the line CD is

This line passes through the point D(5,5), thus

Hence, the equation of CD is
