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bogdanovich [222]
2 years ago
10

HELPPPP PLEASEEE!!! I NEED HELPP

Mathematics
1 answer:
zhenek [66]2 years ago
6 0

Answer:

≥≤ are used when the number is less/greater or equal than some thing.

>< are used when a number is strictly less/greater than some thing.

1) a number x is less than 0 or at least 3

A number x is less than 0 is written as: x < 0.

x is at least 3 is written as: x ≥ 3.

Then we can write the statement as:

x < 0  ∨ x ≥ 3.

where ∨ means "or"

2) a number x is less than or equal to 4 and greater than -1

x less than or equal to 4 is written as: x ≤ 4

x is greater than -1 is written as: x > - 1.

We can write the statement as:

-1 < x ≤ 4

3) a number x is less than 8 and greater than or equal to 5

x is less than 8 is written as: x < 8

x is greater than or equal to 5 is written as: x ≥ 5.

Then the statement can be written as:

5 ≤ x < 8,

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Please need this answer fast it is the last piece to my pie chart for math!!!! A catering service offers 3 appetizers, 5 main co
Brut [27]
To find in how many ways this can be done, we can use the method of combination.

As the customer have to choose 2 out of 3 appetizers, the combination would be 3C2.

For 4 out of 5 main courses, the combination wouls be 5C4.

For 6 out of 8 desserts, the combination would be 8C6.

We can then combine them into a single equation to find the answer:

3C2 x 5C4 x 8C6
=420

Therefore, the answer is 420 ways.

Hope it helps!
7 0
3 years ago
Please help test due today! Will mark brainliest!
Flauer [41]

Answer:

Step-by-step explanation:

JT = 19. 3(4) + 7

37 = CJ + JT

37 = 3x + 6 + 3x + 7

37 = 6x + 13

24 = 6x

X = 4

6 0
2 years ago
Read 2 more answers
Z is less than 2 and equal to or less than 8 intersection​
insens350 [35]

Less than 2 = z < 2

Less than or equal to 8 = z ≤ 8

z ≤ 8

z < 2

8 0
2 years ago
A total of 133 million square miles of the Earth's surface are covered in water. The ratio of the area covered in water to the a
Anni [7]

Answer:

  • 57 million square miles

Step-by-step explanation:

Let the area of water is w and area of land is l.

<u>Their ratio is:</u>

  • w/l = 7/3

or

  • 133 / l = 7/3

Find the value of l

  • l = 133*3/7
  • l = 57 million square miles
6 0
2 years ago
Answer please GIVING BRAINLIEST
Kaylis [27]

Answer:

see below

Step-by-step explanation:

defining variables:

since you are trying to find t shirt cost and jeans cost, your variables would be

the cost of the t shirt and the cost of jeans, denoted by any variable you want.

I'll use x and y since they are the most common variables (x = shirt y = jeans)

Equation

4 shirts + 5 jeans = 160 dollars

4x + 5y = 160 (the cost of 4 shirts + the cost of 5 jeans is $160)

the cost of 2 shirts + 6 jeans = $150

2x + 6y = 150

3 0
3 years ago
Read 2 more answers
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