How many whole numbers have exactly 3 digits

Answers

Answer 1

Answer: The biggest one is 999.

If you started counting from 1 to 999, you would count to 99
before you get to the first 3-digit number.

So there are (999 - 99) = 900 of them.

Answer 2

Answer: 999 because If you add one to 999 it's 1,000 and you'll go into the 4 digits

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100 rational numbers can be inserted between 2 and 7? give your views on this statement

Answers

$a= (7-2)/(101) = (5)/(101) \n\nx_1=2+a=2 (5)/(101)\n\nx_2=2+2a=2 (10)/(101)\n\nx_3= 2+3a=2 (15)/(101)\n\n....\n\nx_(98)=7-3a=7- (15)/(101)=6 (86)/(101)\n\nx_(99)=7-2a=7- (10)/(101)=6 (91)/(101)\n\nx_(100)=7-a=7- (5)/(101)=6 (96)/(101)$

My view is that between any two rational numbers, there are
an infinite number of other rational numbers.

That's my view and I'm sticking to it.

(4 marks)5. Solve the following equations:
a) x+5 = 7
b) 2x - 8 = 20
c) 4x - 6x = 200
d) x+1= 5
3

Answers

a) x + 5 = 7

x + 5 - 5 = 7 - 5 (Subtract 5 from both sides)

x = 2

b) 2x - 8 = 20

2x - 8 + 8 = 20 + 8 (Add 8 to each side)

2x = 28

2x/2 = 28/2 (Divide each side by 2)

x = 14

c) 4x - 6x = 200

-2x = 200

-2x/-2 = 200/-2 (Divide each side by -2)

x = -100 (Note that a negative number divided by a negative number is positive, whereas a positive number divided by a negative number is negative)

d) x + 1 = 5

x + 1 - 1 = 5 - 1 (Subtract 1 from each side)

x = 4

I think:
A) x=7-5
X= 2

B) 2x=20+8
2x= 28
X= 28/2
X= 14

C) -2x= 200
X= 200/-2
C= -100

D) x=5-1
X=4

jake has a sheep farm to the nearest ten he has 540 sheep the sum of the digits is 11 how many sheep could jake have?

Answers

Answer:

Total number of sheep Jake have = 542.

Step-by-step explanation:

Jake has number of sheep = 540 (rounded to the nearest ten).

As per rule, "we round the number down to the nearest ten if the last digit of the number is between 0 to 5".

So the number of sheep with Jake may be between 540 to 545.

It is also given in the question that the sum of digits of the number is 11, so the number will be,

5 + 4 + x = 11 (Here x = last digit of the number)

9 + x = 11

x = 11 - 9

x = 2

Therefore, total number of sheep with Jake is 542.

What is the GCF of 15 and 30

Answers

The greatest common factor (GCF) of 15 and 30 is: 15

Factors of 15: 1, 3, 5, 15
Factors of 30: 1, 2, 3, 5, 6, 10, 15

The common factors between the two numbers are 1, 3, 5, and 15, but considering 15 is the highest number out of them all, it is the greatest common factor.

The greatest common factor of numbers 15 and 30 would be 15.

Given that,

The two numbers are 15 and 30.

Used the concept of the greatest common factor that states that,

The GCF is defined as the largest number that is a factor of two or more numbers.

For example, the GCF of 24 and 36 is 12, because the largest factor that is shared by 24 and 36 is 12.

Here, The two numbers are 15 and 30.

Now, the factors of 15 and 30 are,

Factors of 15: 1, 3, 5, 15

Factors of 30: 1, 2, 3, 5, 6, 10, 15

Clearly, the largest factor that is shared by 15 and 30 is 15.

Therefore, GCF (15, 30) = 15

To learn more about the greatest common factor visit:

brainly.com/question/25266622

#SPJ6

Explain how you can use inverse operations to find 1.8 divided by 3.

Answers

1.8 ÷ 3= X
×1.8 ×1.8=5.4
x=5.4
tell me if it helps.

1.8 divided by 3 = 5.4

Question 2 Multiple Choice Worth 1 points)(01.03 MC)

Laci and Leon are saving money to go to an amusement park. Laci has $1 more than 4 times the amount of money Leon has. Together, they have $76 Write an

equation to determine how much money they have together