Mr. Watson bought new microscopes for his science classroom. Each microscope cost $99.90, and he spent a total of $499.50. How many microscopes did Mr. Watson buy?

Answer: 62 miles per day

Step-by-step explanation:

3100 = 50x

3100/50 = 50x/50

62 = x

A person has to run 62 miles each day to complete the Self Transcendence 3,100-mile race in 50 days.

In mathematics, expression is defined as the relationship of numbers, variables, and functions using mathematical signs such as addition, subtraction, multiplication, and division.

To find out how many miles a person has to run each day, we need to solve the equation:

3100 = 50x

Dividing both sides by 50, we get:

62 = x

Therefore, a person has to run 62 miles each day to complete the Self-Transcendence 3,100-mile race in 50 days.

To know more about an expression follow

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step explanation: it helped me with a lot of assignments.

Answer:

28+x

Step-by-step explanation:

6+6=12

8+8=16

12+16= 28

Answer:

BC14.5 AC 11.3

Step-by-step explanation:

These are the following solutions to the given question related to integers, irrational numbers, and whole numbers, (a) False, (b) True (c) False  (d) True.

By question,

(a) Some whole numbers are not integers = False. We know that every whole number is an integer. The set of whole numbers includes all positive integers (1, 2, 3, ...∞) and zero (0).

(b) Some integers are not irrational numbers = True. The numbers (a) that cannot be expressed as a fraction of two integers and have non-terminating decimal expansions, non-repeating are known as Irrational numbers. Integers, on the other hand, are whole numbers and zero.

(c) Some whole numbers are irrational numbers. = False. The subset of integers are Whole numbers, and they are always rational. They can be expressed in a fraction with a denominator of 1.

(d) All integers are whole numbers. = True. Integers include all the whole numbers i.e. positive, negative, and zero. So, every integer is also a whole number.

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Answer:

2/3 (x - 3)

Step-by-step explanation:

hope this helps =)

2/3 (x-3)

Step-by-step explanation:

hope that helps!

Answer: 45

100% of 18 = 18

50% of 18 = 9

18 + 18 = 36 = 200%

36 + 9 = 45 = 250%

:)

Answer: 45

Step-by-step explanation:

To find a percentage of a number, like what we're being asked to do, you multiply the number ( 18 in this case ) with the decimal form of the percentage. So, since we know 100% is equal to 1, 150% is equal to 1.5 and so on, 250% must be equal to 2.5. Since we know this, we now do:

2.5 x 18 = 45.

Answer:

A and C

1st and 3rd equations

Answer:

6

Step-by-step explanation:

Let's make 8% into a fraction:

[tex]\frac{8}{100}[/tex]

Since, finding a fraction of a number is also the same as multiplying the fraction with the number, we have this equation:

[tex]\frac{8}{100}[/tex] of 75 =

[tex]\frac{8}{100}[/tex] x 75.

Equaling to the answer:

6

I tried to keep it as simple as possible.

Answer:

No.

Step-by-step explanation:

It isn't possible to read 130 pages for homework in 2 hours because like the previous question says, you are only able to tead 52 pages per hour. Now 52 multiplied by 2 is only equal to 104 pages read in two hours. This means that you will have left 26 pages unread for your homework. Although, you are able to read 130 pages in 2 and a half hours since for two hours you are able to read 104 pages, and the left over pages (26 pages) is half of 52 pages which is our hourly rate, meaning that every half hour, we are able to read 26 pages!

Answer:

375.3

Step-by-step explanation:

if one gram is 50.04 then just times by 7.5

50.04 × 7.5 = 375.3

hope this helps

Answer:

B I believe.

Step-by-step explanation:

There are 2 5 by 10 rectangles, so 2(10*5)

There is also a 10 by 6 rectangle, so (10*6)

There are also 2 triangles 6 by 4. So 2(1/2)(6*4)

Answer:

Step-by-step explanation

volume formulae = π r² h

3.14 × 4² × 3

3.14 × 16 × 3

= 150.72 for 1 candle

150.72 × 130

= 19593.6

Answer:

where’s the model….

Step-by-step explanation:

also the last one is 1/4* It’s the same thing but simplified

Answer:

3(5q+9)+5q is equal to 4(5q+6)

Step-by-step explanation:

3(5q+9)+5q is equal to 4(5q+6). To show this, first expand the expressions:

3(5q+9)+5q = 15q+27+5q = 20q+27

4(5q+6) = 20q+24

Hello! :)

(-2 7/8)(-4 4/5)

1. - 2x8+7/8 x -4 4/5

2. - 16+7/8 x -4 4/5

3. -23/8 x -4 4/5

4. - 23/8 x -24/5

5. - 23x-24/8x5

6. - -552/8x5

7. - -552/40

8. -(- 552/40)

9. -(-69/5)

10. 69/5

11. 13[tex]\frac{4}{5}[/tex]

Exact form: 69/5

Decimal form: 13.8

Mixed number form: 13 4/5

Answer:

$34.74

Step-by-step explanation:

The discount price is 0.82 * 40 = $32.80

The sales tax adds an additional 1.94 leaving you with 34.74

Hope that helps.

Answer:

vi) For point F, Here, we can see that the point lies on the positive x – axis, therefore, its y – coordinate will be 0 and x – coordinate will be positive. Now, the distance of the point from the y – axis is 4 units. Hence, the coordinates of the point F can be written as F (4, 0).

Step-by-step explanation:

Answer: hope this helps ♡

The coordinates of F' are (2,11).

Step-by-step explanation:

right & left = x                        up & down = y

right & up = positive (+)         left & down = negative (-)

F = (6,8)

4 units left = 6 - 4 (x - 4) = 2

3 units up = 8 + 3 (y + 3) = 11

F = (6,8) → (2,11)

Step-by-step explanation:

2x-14=8

2x=8+14

2x=22

x=22/2

x=11

hope it helps

Answer:

It has 30 vertices.

Step-by-step explanation:

brainliest lang masaya nako

Answer:g<-7

Step-by-step explanation:

4-5g>39

-4 from both side

-5g>35

divide -5 from both side

g<-7

if you divide the negative number the sign will switch <

Answer:

a < 0 and b < 0

a < 0 and b > 0

a > 0 and b < 0

a > 0 and b > 0

Step-by-step explanation:

Answer:

25.6

Step-by-step explanation:

4/5 of 32 is equal to 25.6. To calculate this, we can multiply 4/5 by 32. 4/5 = 0.8, so 0.8 x 32 = 25.6.

Answer:

25.6

Step-by-step explanation:

Answer:Why this again? math is simple but this is not even though I’m in 6th grade. True false false true

Step-by-step explanation: true , false , false , true

Answer:

=======================================================

Explanation:

Problem 1

A rational number is any fraction of integers such as 2/3 and 4/7. An irrational number is something that cannot be written as this type of fraction. A famous example is the number pi = 3.14...

This means that any irrational number is not rational, and by extension is not an integer or whole number either. Any integer is automatically rational. Example: 7 = 7/1.

This is why the first answer is true

--------------

Problem 2

Refer to the explanation for problem 1. I talked about how the whole numbers are completely separate from the irrational numbers. Therefore, we arrive at an answer of false.

--------------

Problem 3

This is false because any whole number like 13 can be written as a fraction. 13 = 13/1

Therefore, any whole number is automatically rational.

--------------

Problem 4

This is true. The rational number 2/3 isn't a whole number, but 13 = 13/1 is  whole number.

Answer:

24 frames per second

Step-by-step explanation:

There are 24 frames per second in the anime because when you divide 86,400 by 3,600 you get 24.

Answer:

24

Step-by-step explanation:

Based on the given conditions, formulate: 86400/3600

Cross out the common factor:24

answer: 24

Answer:

Step-by-step explanation:

C :)

Answer:

80 points

Step-by-step explanation:

40/6= 6.6666666667

6.6666666667*12=80.0000000004

rounded 80

Answer:

Below

Step-by-step explanation:

1 1/2 is equal to   3 / 2

   to get '6' in the denominator multiply by  3/3  ( which is just multiplying by a form of '1')

3/2  *  3/3  =  (3*3) / ( 3*2) = 9 / 6      ( or   1   3/6)