15 to 2 is a 7.5 ratio so 3 to 22.5 is a 7.5 ratio so the mural would be 22.5 feet long.
Hope that helps.
Answer:
.90 per pound
Step-by-step explanation:
just take 4.50 and divide it by 5 to get .90 and you can just check it by taking .90 and multiplying it by 5 and you still get 4.50 as the overall price
Answer:
a = -3.8
b = -2.6
c = 1.7
d = 4.4
e = 1.0
Step-by-step explanation:
Inverse just means that the x- and y-values are reversed. Notice how I didn't need to do any math to fill in the blanks; all the points are already given!
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Answer:
$0.40 per oz
Step-by-step explanation:
given that the cereal is $3.60 for a 9 oz box
i.e
9 oz ----> costs $3.60
1 oz ----> costs $3.60 ÷ 9 = $0.40
hence the unit rate is $0.40 per oz