Given parameters:
Cost per pound of Arabica coffee = $28 per pound
Cost of Robusta coffee = $8.75
Given number of pounds of Robusta Coffee = 3 pounds
Total cost of blend per pound = $15.50
Unknown:
Number of pounds of Arabica coffee = ?
Solution:
Let the number of pounds of Arabica coffee = A;
We have to interpret this problem algebraically and solve;
28A + 8.75(3) = 15.5(A + 3)
Now solve the expression above for A;
28A + 26.25 = 15.5A + 46.5
28A - 15.5A = 46.5 - 26.25
12.5A = 20.25
A = 1.62
Number of pounds of Arabica Coffee is 1.62 pound
The first one would be 12+14+18+12+15. She biked about 71 miles.
I did this by rounding the decimal places. 5 and up = round up. 4 or less= stays the same. I'll answer #2 in a second, I have to do something :)
The coefficient of x^2 is positive so it will have a minimum value
Its B
Answer:
20%
Step-by-step explanation:
If you divide 32 out of 40, you will get .8. Multiply that by 100 and you will get 80%. The question asks for the percentage of <em>incorrect</em> ones, so subtract 80 out of 100 and you will get 20%.
She got 20% of the words incorrect.
