<span><span>Equations:
</span><span>
8c + 4t = 45
3c + 2t = 20
Modify for elimination: ( multiply 2</span>nd<span> eq by -2)
</span><span>
8c + 4t = 45
-6c + -4t = -40</span></span>
<span>
<span>
Subtract and solve for "c":
2c = 5
c = $2.50 (cost of one chair)
Solve for "t":
3c + 2t = 20
3(2.50) + 2t = 20
7.50 + 2t =20</span></span>
2t=12.50
<span><span>T= 12.50/2 =6.25
</span>
t = $ 6.25 (cost of one table)</span>
Table = 6.25 each
Chair = 2.50 each
Check:
3(2.50) + 2(6.25) =
7.50 +12.50 = 20
8(2.50) + 4(6.25) =
20.00 + 25.00 = 45.00
Answer:
You haven't given us the question. However, I can guess:
Step-by-step explanation:
51,000/year
What's the monthly salary?
What's the agency's fee?
So, the actual salary left after the fee is:
51000 - 1487.5 = 49512.5
Answer:
b
Step-by-step explanation:
It’s either y/3 is less than or equal to to -17
or
3/y is less than or equal to -17
Answer:
Step-by-step explanation:
(x - 8)*5 = 70
5x - 40 = 70
5x - 40 + 40 = 70 + 40
5x = 110
x = 110/5
x = 23
She started with 23
So You should have done
23 - 5 = 18
18 * 8 = 144
What you should have obtained was 144