Asociative property of multiplication
Answer:
Proportional Relationship: I Not a Proportional Relationship:
y=1.6x I y=3/(4x)
y=x I y=2x+1
y=12x . I y=3+x
Explanation:
I took the test and that's how i got these answers.
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
Answer:
4:5
Step-by-step explanation:
You are doing ratios
Answer:
False
Step-by-step explanation:
10 – [50 ÷ (-2 x 25) -7] x 22 = -18
10 - (50 ÷ (-50)-7) x 22= -18
10 - (-1 - 7) x 22= -18
10 - (-8) x 22 = -18
10 + 8 x 22 = -18
10+176=-18
186=-18
False
