Answer:
The difference of fifty-four and seven times a number is written as 54 - 7x.
Step-by-step explanation:
Nine days. You can divide 108 by 36, to get how many times she has to read 36 pages, which is 3. Then you multiply that by 3, because she uses 3days for every 36 pages. 3x3=9
Debnil have 2 tablespoons to salt.
Step-by-step explanation:
Given,
Number of teaspoons of salt = 6
Ratio of teaspoons to tablespoons = 3:1
Let,
x be the number of tablespoon of salt for 6 teaspoons.
Ratio of teaspoons to tablespoons = 6:x
Using proportion
Ratio of teaspoons to tablespoons :: Ratio of teaspoons to tablespoons

Product of mean = Product of extreme

Dividing both sides by 3

Debnil have 2 tablespoons to salt.
Keywords: ratio, proportion
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Answer:
u^2-2u-15 = 0
Step-by-step explanation:
If you make the substitution ...
u equals x Superscript negative 1 Baseline
then you can rewrite the equation as shown above.