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3 years ago

12

In 4 hours, the temperature steadily fell from 0°F to −12°F. What was the average change in temperature per hour? The average ch

ange in temperature per hour is

1 answer:

grin007 [14]3 years ago

4 0

-3 because it reduced -3 every hour of you divide -12 by 4 you will get -3 which is the average

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ok this is very long but the points are worth it PLS HELP I BEG!! like cmon its 50 points (i think..... i put 100)

ivanzaharov [21]

<u>Answer:</u>

Below!

<u>Step-by step solution:</u>

<u>Dividing Mixed Numbers (Answers):</u>

1. 2 9/10 ÷ 3 2/5

=> 29/10 ÷ 17/5
=> 29/10 x 5/17
=> 29/2 x 1/17
=> 29/34

2. 4 1/2 ÷ 3 1/5

=> 9/2 ÷ 16/5
=> 9/2 x 5/16
=> 45/32

3. 4 1/4 ÷ 3 4/5

=> 17/4 ÷ 19/5
=> 17/4 x 5/19
=> 85/76

4. 4 1/2 ÷ 2 2/5

=> 9/2 ÷ 12/5
=> 9/2 x 5/12
=> 3/2 x 5/4
=> 15/8

5. 3 1/2 ÷ 4 2/5

=> 7/2 ÷ 22/5
=> 7/2 x 5/22
=> 35/44

6. 4 3/5 ÷ 3 1/2

=> 23/5 ÷ 7/2
=> 23/5 x 2/7
=> 46/35

<u>Dividing Fractions and Whole Numbers (Answers):</u>

1. 10 ÷ 5/10

=> 10 x 10/5
=> 100/5
=> 20

2. 2/3 ÷ 7

=> 2/3 x 1/7
=> 2/21

3. 10 ÷ 2/4

=> 10 x 4/2
=> 10 x 2
=> 20

4. 10 ÷ 2/3

=> 10 x 3/2
=> 5 x 3
=> 15

5. 2/3 ÷ 3

=> 2/3 x 1/3
=> 2/9

6. 1/2 ÷ 7

=> 1/2 x 1/7
=> 1/14

<u>Dividing Fractions (Answers):</u>

1. 1/2 ÷ 1/3

=> 1/2 x 3
=> 3/2

2. 4/5 ÷ 1/2

=> 4/5 x 2
=> 8/5

3. 2/4 ÷ 7/10

=> 1/2 x 10/7
=> 5/7

4. 1/2 ÷ 5/10

=> 1/2 x 10/5
=> 1/2 x 2
=> 1

5. 2/4 ÷ 2/5

=> 2/4 x 5/2
=> 1/4 x 5/1
=> 5/4

6. 4/5 ÷ 1/3

=> 4/5 x 3
=> 12/5

Hoped this helped.

$BrainiacUser1357$

7 0

2 years ago

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The ratio of two numbers is 1 to 5, and the sum of the numbers is 36. What is the smaller number?

AfilCa [17]

Here is how to work it out: 1 + 5 = 6 36 / (1+5) meaning 36 / 6 = 6 6 * 1 = 6 the smaller number 6 * 5 = 30 the larger number 6 the smaller number + 30 the larger number = 36 The smaller number is 6

7 0

3 years ago

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Find the height of a cone with a diamater of 12m whose value is 151 meters cubed, then round it to the nearest meter

Mariana [72]

Answer:

Height= 4m (nearest meter)

Step-by-step explanation:

$\boxed{volume \: of \: cone = \frac{1}{3} \pi {r}^{2}h }$

Diameter= 2(radius)

Given that the diameter is 12m,

radius of cone

= 12 ÷2

= 6m

Let the height of the cone be h meters.

$151 = \frac{1}{3} \pi(6^{2} )(h)$

$151 = 12\pi h$

$h = \frac{151}{12\pi}$

h= 4.0054 (5 s.f.)

Thus, the height of the cone is 4m. (nearest meter)

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3 years ago

You are mowing lawns to make some extra money. The amount of money you make varies directly with the number of lawns you mow. If

borishaifa [10]

You earn 10 dollars per lawn

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4 years ago

Ted is making trail mix for a party .He mixes 1/1/2cups of nuts,1/4 cup of raisins,and 1/4 cup of pretzels.How many cups of pret

balandron [24]

Answer:

1.875 or $1\frac{7}{8}$ cups of pretzel

Step-by-step explanation:

The number of cups needed is equivalent to the probability of pretzel in the mix times the number of cups in the mix.

-The probability of pretzel is :

$P(pretzel)=\frac{0.2}{0.25+0.25+1.5}\\\\=0.125$

We multiply this probability by the number of cups of the mix:

$=P(pretzel)\times (mix \ cups)\\\\=0.125\times 15\\\\=1.875 \ or \ 1\frac{7}{8}$

Hence, 1.875 or 1/7/8 cups of pretzel is needed.

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3 years ago

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