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agasfer [191]
2 years ago
8

The temperature dropped 2 °F every hour for 12 hours. What was the total number of degrees the temperature changed in the 12 hou

rs?
24 degrees
14 degrees
-24 degrees
-2 degrees
Mathematics
2 answers:
Montano1993 [528]2 years ago
8 0

Answer:

-24 degrees

Step-by-step explanation:

To find the total change in temperature, multiply 12 by -2, since it dropped 2 degrees each hour for 12 hours.

12*(-2)

= -24

This means -24°F was the total number of degrees the temperature dropped.

mash [69]2 years ago
6 0

Answer:

The question mentions the keyword, "temperature drops" meaning we need to alternatively subtract.

t = -2 * 12

If we know that positive 2 times 12 is 24, we know -2 times 12 will be negative 24°, because any negative number times a positive number is <em>always </em>a negative number.

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What is the volume of the cone below?
bagirrra123 [75]

Answer:

B. 3408pi

Step-by-step explanation:

formula volume of cone = 1/3 x pi x r x r x h

volume = 1/3 x pi x 12 x 12 x 71

= 3408pi

3 0
3 years ago
Which of the following statements is true?
Margaret [11]

Answer:

c

Step-by-step explanation:

it's more a gut feeling

5 0
3 years ago
A restaurant has 50 tables. 40% of the tables have 2 chairs at each table. The remaining 60% of the tables have 4 chairs at each
liubo4ka [24]

Answer:

Total number of chairs in the restaurant = 160.

Step-by-step explanation:

Total number of tables in the restaurant = 50

It is given that 40% of the tables have 2 chairs at each table.

40% of 50 = \frac{40}{100} (50)

= 20

So, 20 tables have 2 chairs at each table.

Number of chairs required for 20 tables = 20 × 2 = 40

Remaining 60% of the tables have 4 chairs at each table.

60% of 50 = \frac{60}{100} (50)

= 30

So, 30 tables have 4 chairs at each table.

Number of chairs required for 30 tables = 30 × 4 = 120

Hence, total number of chairs in the restaurant = 40 + 120 = 160.

5 0
3 years ago
Ebony earned scores of 72 70, 81, 99, and 88 on five math tests. Determine her
Minchanka [31]

Let it be x

\boxed{\sf Average=\dfrac{Sum\:of\:terms}{No\:of\:terms}}

\\ \sf\longmapsto \dfrac{72+70+81+99+88+x}{6}=83

\\ \sf\longmapsto \dfrac{410+x}{6}=83

\\ \sf\longmapsto 410+x=498

\\ \sf\longmapsto x=498-410

\\ \sf\longmapsto x=88

6 0
3 years ago
Can someone help please, will give brainiest if correct!!!!
Bond [772]

Answer:

AB = 9/2 cm

AB = 4.5 cm

Step-by-step explanation:

The area of small rectangle

x * (x-4) = x^2 -4x

The area of  the big rectangle

The height is 2x +x  and the width is x-2

(2x+x) * (x-2)

(3x) * (x-2)

3x^2 -6x

Add the areas together

x^2 -4x + 3x^2 -6x

4x^2 -10x

This is equal to 36

4x^2 -10x=36

Subtract 36 from each side

4x^2 -10x -36=36-36

4x^2 -10x-36=0

Divide each side by 2

2x^2 -5x -18=0

Factor

(x + 2) (2 x - 9) = 0

Using the zero product property

x+2=0  2x-9=0

x = -2   2x =9

x = -2   x = 9/2

Since we cant have a negative length

x = 9/2

AB = 9/2 cm

5 0
2 years ago
Read 2 more answers
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