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3 years ago

7

Yesterday 170 guests at a hotel for room service, and 255 guests did not call for room service. What percentage of the guests at

the hotel call for room service?
A - 60%
B - 15%
C - 40%
D - 85%

1 answer:

Sindrei [870]3 years ago

3 0

Answer: 40%

Step-by-step explanation:

170+255=425 total guests

170/425=0.4

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Which of the algebraic expressions are not linear expressions? Select all that apply. a. 3x - 2 b. -9y c. -7x^2^ + 4x d. -1/2x^2

Sedaia [141]

Answer:

c, d and e

Step-by-step explanation:

A linear expression is an expression in which sum of exponents of variables is at most 1 in each of its terms.

Option a: $3x - 2$

Here, the exponent of the variable is 1.

So, it is a linear expression.

Option b: $-9y$

Here, the exponent of the variable is 1.

So, it is a linear expression.

Option c: $-7x^2 + 4x$

Here, the highest exponent of the variable is 2.

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Option d: $-\frac{1}{2} x^2$

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Option e: $8xy$

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