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AveGali [126]
2 years ago
14

Need help ASAP please

Mathematics
1 answer:
monitta2 years ago
7 0

Answer:

  1. 5 inches is <u>5</u> times as big as 1 inch.
  2. 12.7 centimeters is <u>5</u> times as big as 2.54 centimeters.

Step-by-step explanation:

  1. 5 ÷ 1 = 5
  2. 12.7 ÷ 2.54 = 5

I hope this helps!

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Factor by completing the square 5x^2-21=10x
velikii [3]
Solve for x over the real numbers:
5 x^2 - 21 = 10 x

Subtract 10 x from both sides:
5 x^2 - 10 x - 21 = 0

Divide both sides by 5:
x^2 - 2 x - 21/5 = 0

Add 21/5 to both sides:
x^2 - 2 x = 21/5

Add 1 to both sides:
x^2 - 2 x + 1 = 26/5

Write the left hand side as a square:
(x - 1)^2 = 26/5

Take the square root of both sides:
x - 1 = sqrt(26/5) or x - 1 = -sqrt(26/5)

Add 1 to both sides:
x = 1 + sqrt(26/5) or x - 1 = -sqrt(26/5)

Add 1 to both sides:
Answer:  x = 1 + sqrt(26/5) or x = 1 - sqrt(26/5)
4 0
3 years ago
the management of a hotel found that they will sell all 800 tickets at 4 dollars per per person for a hour concert for one night
Lesechka [4]

Answer:

Step-by-step explanation:

Let x represent the rate at which the ticket is sold and let y represent the number of tickets sold at that rate.

When x = 4, y = 800

This means that the income from gate takings at this rate is 4 × 800 = $3200

For each 1 dollar increase in the gate fee,management expects 100 fewer customers to buy tickets. It means that the amount earned would be (x + 1)(y - 100)

For the amount to be $3500, it means that

(x + 1)(800 - 100) = 3500

700(x + 1) = 3500

x + 1 = 3500/700 = 5

Therefore, management should charge $5 per person for gate fee so that it collects 3500 dollars from gate takings.

7 0
2 years ago
At each stop, you get a snack. Stop 1 you spent a total of $12.50 and gave the cashier $15. How much change did you receive back
Nataliya [291]

Answer:

$2.50

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Please help with this​
gladu [14]
Answer: Y=-3x+5
Explanation:
6 0
3 years ago
When evaluating, what will be the exponent of 10 in the quotient?<br> 3<br> 4<br> 8<br> 16
qaws [65]
In this case it would be 8
3 0
2 years ago
Read 2 more answers
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