Ask question

Ask question

All categories

2 years ago

7

After a power failure the temperature in a freezer increased at an average rate of 1.3 degrees Fahrenheit per hour. The total in

crease was 3.9 degrees Fahrenheit. Write and solve an equation to find the number of hours until the power was restored.

1 answer:

Liula [17]2 years ago

8 0

1.3x(y)= 3.9
3.9/1.3= 3
The answer is 3 hours

You might be interested in

A bottle contains 255 coins. 1/3 of the coins are ?1.00. 110 of the coins are 50p coins. the rest are 20p coins. work out the to

aliina [53]

Answer:

£152.

Step-by-step explanation:

We have been given that a bottle contains 255 coins. 1/3 of the coins are £1.00.

Let us find 1/3 of 255 to find the number of £1 coins.

$\£1\text{ coins}=\frac{1}{3}\times 255$

$\£1\text{ coins}=85$

This means we have £85.

We are also told that 110 of the coins are 50 p coins.

$\text{Value of 50 p coins}=\£0.50\times 110$

$\text{Value of 50 p coins}=\£55$

Let us figure out number of 20 p coins by subtracting the number of £1 coins and 50 p coins from 255.

$\text{Number of 20 p coins}=255-(85+110)$

$\text{Number of 20 p coins}=255-(195)$

$\text{Number of 20 p coins}=60$

$\text{Value of 20 p coins}=\£0.20\times 60$

$\text{Value of 20 p coins}=\£12$

Now let us find total value of the coins contained in the bottle by adding the values of £1 coins, 50 p coins and 20 p coins.

$\text{The total value of the coins}=\£85+\£55+\£12$

$\text{The total value of the coins}=\£152$

Therefore, the total value of the coins contained in the bottle is £152.

4 0

3 years ago

Read 2 more answers

Which decimal is equivalent to -3 1/8? *20 points*

kondaur [170]

Answer: -3.125

Step-by-step explanation: -1 divided by 8 = .125

5 0

2 years ago

Which unit would you use to measure the weight of a car?<br><br> mg<br> kg<br> g<br> km

Mariulka [41]

Answer:

kg

Step-by-step explanation:

7 0

2 years ago

Read 2 more answers

What is the answer to the following equation?<br>-x • 3x=?

Darina [25.2K]

The answer is -3 because:
A negative times a postive stays negative and also:
the variable "x" has an invisible one in front of it, so,
-1 x 3 = -3

Hope this helps :)

8 0

3 years ago

What is the slope of the line given by the equation y = 12x?

FrozenT [24]

Answer:

up 12 over 1

Step-by-step explanation:

8 0

2 years ago

Read 2 more answers