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3 years ago

A pair of jeans Is $36.99 and they are on sale for 20% off. What is the sale price?

Mathematics

2 answers:

Pani-rosa [81]3 years ago

6 0

Answer:

$29.59

Step-by-step explanation:

100% - 20% = 80%

36.99 x 0.80 = $29.59

Bad White [126]3 years ago

3 0

Answer:

i think its $20.40 im so sorry if im wrong

Step-by-step explanation:

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A number increased by 5 is less than or equal to 26

blagie [28]

Answer:

Equation: x + 5 ≤ 26

Solved: x ≤ 21

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3 years ago

A calculator is required to obtain the final answer on this question. A solid metal sphere at room temperature 20oC is dropped i

yKpoI14uk [10]

Answer:

T = 47.1875°C

Step-by-step explanation:

Given:

Surrounding temp, Ts = 100°C

Initial Temperature ,T0= 20°C

Increase in temperature = 15°C

Final temperature, T = 20 + 15 = 35°C

Time, t = 9 seconds

Let's take Newton's law of cooling:

$T - Ts = (T_0 - Ts)e^k^t$

We'll solve for k

$35 - 100 = (20 - 100)e^9^k$

$-65 = (-80)e^9^k$

Divide both sides by -5

$13 = (16)e^9^k$

$9k = ln (\frac{13}{16})$

$k = \frac{1}{9} ln (\frac{13}{16})$

$k = -0.02307104053$

Let's now find the temperature of the ball after 18 seconds in boiling water.

Use the Newton's equation again:

$T - Ts = (T_0 - Ts)e^k^t$

$T - 100 = (20 - 100)e^-0.0^2^3^0^7^1^0^4^0^5^3^*^1^8$

$T - 100 = (-80)e^-0.0^2^3^0^7^1^0^4^0^5^3^*^1^8$

$T - 100= -52.8125$

$T = 100 - 52.8125$

T = 47.1875°C

Temperature of the ball after 18 seconds in boiling water is 47.1875°C

5 0

3 years ago

Someone pls tell me the answer to this5(6.2+z);z=3.8

Yuri [45]

Answer:

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Step-by-step explanation:

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3 years ago

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Burka [1]

Answer:

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Step-by-step explanation:

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Rzqust [24]

Divide 7 by 105 and then multiply by 100:

7 ÷ 105 = .0667
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2 years ago

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