Let n be # of nickels
let (n + 7) be # of quarters
convert 2.65 to cents:
2.65 = 265
5n + (25n + 175) = 265
30n + 175 = 265
30n = 90
n = 90/30
n = 3
answer: 3 nickels, 10 quarters
Answer:
no, not proportional
Step-by-step explanation:
set up a proportion and see if cross-products are equal:
8/3 = 14/6
cross-multiply:
(8)(6) ≠ (14)(3)
48 ≠ 42
Without computing, select all of the expressions that have the same value as 81. (37 + 59).
A. 81. (59 +37)
Answer:
Your rule is: Multiply 2, Add 1
Step-by-step explanation:
Check:
2 x 2 = 4 + 1 = 5
5 x 2 = 10 + 1 = 11
11 x 2 = 22 + 1 = 23
23 x 2 = 46 + 1 = 47
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