6. A hotel puts 4 pillows in each of its, r, rooms and stores
another 100 pillows in case guests want more. If the hotel
has 452 pillows total, how many rooms, r, are in the hotel.
Identify the correct equation and value for r.
a) 4r – 452 = 100
b) 4r + 100 = 452
I c) r= 138
d) p = 88
e) 4(r + 100) = 452

use substitution to solve each system of equations. y = x + 5 3x + y = 25 62/87,21 y = x + 5 3x + y = 25 substitute x + 5 for y in the second equation. substitute the solution for x into either equation to find y. the solution is (5, 10)

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step-by-step explanation:

chicken nugget stir fry

step-by-step explanation:

3. (5x + 1) - (-10x + 6)

simplify the answer choice. combine like terms. remember to distribute the negative to the terms inside the second parenthesis. also remember that two negatives = one positive, and one of each sign = negative.

- (-10x + 6) = + 10x - 6

simplify. combine like terms:

5x + 1 + 10x - 6

5x + 10x + 1 - 6

15x - 5

∴ it is your answer

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x² + 3x + 7 = 0       [ax² + bx + c]

a = 1

b = 3

c = 7

quadratic formula:

    (+/- is this ±)

plug in the numbers into the variables

your answer is a