Answer:
<em><u>A = 2.1</u></em>
<em><u>B = 5.9</u></em>
<em><u>C = 10</u></em>
<em><u>D = 0.9</u></em>
Step-by-step explanation:
This is a long one
A + B = 8
my plan is to substitute B
B - D = 5
B = 5 + D
Now substitute D
C*D=9
D = 9/C
Now substitute C
A*C = 21
C = 21/A
Back to the D equation
D = 9/C
D = 9/(21/A) = 9A/21 = 3A/7
Back to B equation
B = 5 + D
B = 5 + 3A/7
Back to A equation
A + B = 8
A + (5 + 3A/7) = 8
7/7A + 3/7A + 5 = 10A/7 + 5 = 8
10A/7 = 3
10A = 21
<u><em>A = 21/10 = 2.1</em></u>
The rest <em>should</em> be simple
B = 5 + 3A/7
<u><em>B = 5 + 3(2.1)/7 = 5.9</em></u>
C = 21/A
<em><u>C = 21/2.1 = 10</u></em>
D = 9/C
<em><u>D = 9/10 = 0.9</u></em>
If the problem is supposed to read (4^33*8^37)/(4^15*8^21), then...
(4^33*8^37)/(4^15*8^21) = (4^33/4^15)*(8^37/8^21)
(4^33*8^37)/(4^15*8^21) = 4^(33-15)*8^(37-21)
(4^33*8^37)/(4^15*8^21) = 4^18*8^16
Answer: Choice A) 4^18*8^16
Answer:
50r + a = 135
Admission cost was $85
Step-by-step explanation:
We are missing a crucial amount of information here. It is how much she spent on her admission. We can create an equation symbolizing this problem.
5r + a = 135
We know that she purchases 10 tickets so we can substitute that in r and solve for a.
50 + a = 135
a = 85
Best of Luck!
Answer:
a = 3
Step-by-step explanation:
Hope that helps :)
The total cost of 12 printers is; $493.41
Cost of first printer; C1 = $54
Cost of second printer is; 95% × 54 = $51.3
Cost of third printer is; 0.95 × 51.3 = $48.735
Cost of fourth printer = 0.95 × 48.735 = $46.298
Now, let us apply same pattern using a calculator for the remaining costs and we will have them as follows;
- Cost of 5th printer = $43.983
- Cost of 6th printer = $41.784
- Cost of 7th printer = $39.695
- Cost of 8th printer = $37.710
- Cost of 9th printer = $35.825
- Cost of 10th printer = $34.033
- Cost of 11th printer = $32.332
- Cost of 12th printer = $30.715
Total cost of the 12 printers is;
54 + 51.3 + 48.735 + 46.298 + 43.983 + 41.784 + 36.695 + 37.710 + 35.825 + 34.033 + 32.332 + 30.715 = $493.41
Read more about total costs of successive items at; brainly.com/question/16082169