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Illusion [34]
2 years ago
9

Use square roots to solve x2 - 10x + 25 = 144

Mathematics
2 answers:
Vilka [71]2 years ago
8 0

Answer:

x = 7

Step-by-step explanation:

Factor the problem to get (x - 5)^2 = 144

Square root to get x + 5 = 12

Subtract 5 to get x = 7

EastWind [94]2 years ago
7 0

Answer: x = 17

Step-by-step explanation: Factor the equation to get

(x - 5)² = 144

Take the square root of each side to get

x - 5 = 12 Add 5 to both sides.

x = 17

Check:

17² - 10(17) + 25 = 144

289 - 170 + 25 = 144

119 +25 = 144. true.

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Step-by-step explanation:

Sofia ordered sushi for a company meeting. They change plans and increase how many people will be at the meeting, so they need at least 100 pieces of sushi in total. Sofia had already ordered and paid for 24 pieces of sushi, so she needs to order additional sushi. The sushi comes in rolls, and each roll contains 12 pieces and costs $8 Let R represent the number of additional rolls that Sofia orders.

1)

Which inequality describes this scenario?

Choose 1 answer:

(Choice A) 12+ 24R ≤ 100

(Choice B) 12+24R ≥ 100

(Choice C) 24+12R ≤100

(Choice D) 24+12 ≥100

2)

What is the least amount of additional money Sofia can spend to get the sushi they need?

ans) ___ dollars

please solve fast !!!! thank you from advance :)

The sushi comes in rolls, and each roll contains 12 pieces and costs $8 Let R represent the number of additional rolls that Sofia orders

Sofia has ordered 24 pieces

Sofia needs 100 pieces

sushi comes in rolls

12 pieces per roll

= 12R

24 + 12R ≤ 100

(Choice C) 24+12R ≤100

B.

24 + 12R ≤ 100

12R ≤ 100 - 24

12R ≤ 76

R ≤ 76 / 12

R ≤ 6.33

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R ≤ 7

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