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Leni [432]
3 years ago
5

The difference of twice a number and 2 is at least −26.

Mathematics
2 answers:
natita [175]3 years ago
8 0

2x - 2 \geqslant  - 26
777dan777 [17]3 years ago
5 0

Answer:

2 (c-2) ≤ -26

Step-by-step explanation:

Let's look at the phrase "Twice the difference of a number and 8".

We're using c for the unknown number.

So "the difference of a number and 8" is written −c8.  

Taking twice this quantity, we get 2−c8.

The symbol for "is at most" is ≤. We get the following:

2 (c-2) ≤ -26

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31x-4+120 =180 <br> How would I solve ?<br> Any tips ?
KIM [24]

Answer:

x=64/31

Step-by-step explanation:

31x-4+120=180

31x+116=180

subtract 116 from both sides

Simplify

Divide both sides of the equation by the same term

get answer x=64/31

5 0
3 years ago
The temperature was -20.5°F at 5 A.M. and rose 5 degrees per hour for the next 5 hours. Melissa says the temperature at 10 A.M.
kati45 [8]

The statement which identifies Melissa’s error and the correct answer is; Melissa added incorrectly. The correct answer is 4.5°F

<h3>Temperature</h3>

  • Initial temperature = -20.5°F
  • Change in temperature per hour = 5°F
  • Number of hours = 5

New temperature = Initial temperature + (Change in temperature per × Number of hours)

= -20.5°F + (5°F × 5)

= -20.5°F + (25°F)

= 4.5°F

Learn more about temperature:

brainly.com/question/2339046

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4 0
1 year ago
Jordan performed an experiment using a number cube. He rolled a number cube 50 times. He found that he rolled a 6 a total of 8 t
bazaltina [42]

Answer:

Step-by-step explanation:

Total number of rolls = 50

Number of times rolling a 6 = 8 times

Number of times not rolling a 6 = 50 -8 = 42

P(~6) = 42/50 = 0.84

8 0
2 years ago
HELP 20 POINTS!! COMPARE 4.1 -3 1/2
GrogVix [38]
The answer to your question is <

-3 1/2 is greater that -4.1
8 0
3 years ago
Read 2 more answers
Laney builds a tower with wooden cubes. The bottom cube's edges are 8 centimeters long. The middle cube's edges are 2 centimeter
Mazyrski [523]

Answer: The total volume of the the cubes in the tower is 792 cubic centimetres (792 cm³)

Step-by-step explanation: We shall call the volume of the cube at the bottom VB, the volume of the cube at the middle VM, and the volume of the cube at the top VT. The tower is made up of cubes at different levels and at the bottom the cube measures 8 centimetres. The cube at the middle measures 2 cm less than the bottom cube, hence middle cube equals 8 minus 2 which equals 6 cm. The top cube measures 2 cm less than the middle cube, hence the top cube equals 6 minus 2 which equals 4 cm. The volume of each cube is given as;

Volume = L³

The length of a cube measures the same on all sides, that is, length, width and height. The length on all sides therefore of the bottom cube is 8 cm. The volume equals;

VB = 8³

VB = 512 cm³

The length on all sides of the middle cube is 6 cm (measures 2 cm shorter than the bottom cube). The volume of the middle cube equals;

VM = L³

VM = 6³

VM = 216 cm³

The length on all sides of the top cube is 4 cm (measures 2 cm shorter than the middle cube). The volume of the top cube equals;

VT = L³

VT = 4³

VT = 64

From the calculations shown, the total volume of the cubes in the tower is given as;

Total volume = VB + VM + VT

Total volume = 512 + 216 + 64

Total volume = 792 cm³

Total volume is 792 cubic centimetres.

8 0
3 years ago
Read 2 more answers
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