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marshall27 [118]

3 years ago

15

a 18-inch candle is burning at the rate of 1 inch per hour and 1 15-inch candle is burning at half of an inch per hour. How long

will it take for the two candles to be the same height?

2 answers:

Y_Kistochka [10]3 years ago

8 0

Hi how are you doing today Jasmine

Bingel [31]3 years ago

4 0

After 6 hours of burning each candle will be 12 inches long

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9. Which of the following integers cannot be expressed as the difference of two squares?

maria [59]

Answer:

D ) 9

Step-by-step explanation:

From your question, I assume that the difference of two squares would be d, since you could do this:

9 = 3 x 3

Hope this helps!

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4 years ago

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3 years ago

During the first 50 minutes of flight, the Concorde climbs from ground level to an altitude of about 52,000 ft. What is the conc

horsena [70]

Let

x--------> the time in minutes

y-------> an altitude in feet

we know that

For x=0 min y=0 ft

For x=50 min y=52,000 ft

so

the rate of change is equal to calculate the slope of the linear equation

$\frac{52,000-0}{50-0}=\frac{52,000}{50}=1,040\frac{ft}{min}$

Round to the nearest hundred--------> $1,000\frac{ft}{min}$

therefore

<u>the answer is</u>

$1,000\frac{ft}{min}$

7 0

3 years ago

The heat in the house is set to keep the minimum and maximum temperatures (in degrees Fahrenheit) according to the equation |x –

solniwko [45]

Answer:

Minimum temperature is 68.5 ° and maximum temperature is 76.5 °

Step-by-step explanation:

Given :

|x – 72.5| = 4.

When the Temperature of x is minimum So the Minimum temperature is

$|x - 72.5| = 4\\it\ can \ be \ written \ as \\72.5-x=4\\-x=4-72.5\\x=68.5$

When the Temperature of x is maximum So the Maximum Temperature is

$|x -72.5| = 4\\x-72.5=\ 4\\x=72.5+4\\x=76.5$

Therefore The minimum temperature is 68.5 ° and the maximum temperature is 76.5 °

8 0

4 years ago

Read 2 more answers

Consider the equation below <br> -2(bx -5 ) =16

gladu [14]

Answer:

bx = - 3

Step-by-step explanation:

- 2(bx - 5) = 16

- 2bx + 10 = 16

- 2bx + 10 - 10 = 16 - 10

- 2bx = 6

- 2bx ÷ - 2 = 6 ÷ - 2

bx = - 3

8 0

3 years ago