Answer: $500
<u>Step-by-step explanation:</u>
A sells to B at a profit of 10%: 1.10A = B
B sells to C for $577.50 at a profit of 5%: 1.05B = 577.50
Substitute B with 1.10A in the second equation:
1.05(1.10A) = 577.50
1.155A = 577.50
A = 500
Answers:
bio = 258
sociology = 169
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Work Shown:
x = number of bio textbooks
y = number of sociology textbooks
x+y = 427 books sold total
y = x-89 since 89 less sociology textbooks were sold compared to bio
Apply substitution to get the following
x+y = 427
x+x-89 = 427 ... replace y with x-89
2x-89 = 427
2x = 427+89
2x = 516
x = 516/2
x = 258 bio textbooks were sold
y = x-89
y = 258-89
y = 169 sociology textbooks were sold
use this formula
Step-by-step explanation:
Use the distance formula.
d = √[(x2 - x1)2 + (y2 - y1)2]
You have all of the coordinates. Plug in the numbers and evaluate.
Divide the sale price by the original price:
56 / 89 = 0.7
Multiply by 100:
0.7 x 100 = 70%
The sale price is 70% of the original price, so the discount would be 30% (100-70= 30)
Scale factor is 1/3
And I think it's an enlargement
