MATHEMATICS MIDDLE SCHOOL

Is 3/47 a rational number

Answers

Answer 1
Answer: Yes, it is. 

Rational numbers are in the form p/q where p and q are both real numbers, and q does not equal to 0.

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Annie puts $10 into a vacation jar each week. how much will she have saved by the end of the year?

Answers

Solutions 

Annie puts $10 into a vacation jar each week and we need to find out how much will she have saved by the end of the year. To solve the problem first we have to find out how many days there are in a year and convert them into weeks.  

Days in a year = 365

To find weeks divide by 7 since a week consists of 7 days.  

365 ÷ 7 = 52

1 year has 52 weeks 

our next step is to multiply 52 by 10. 

52 x 10 = 520 

By the end of the year she would have saved 520 dollars. 

What is 12 12/8 rounded to the nearest thousands

Answers

Answer:

13.5

you do that by dividing 12 and 8 to get 1.5, then add that extra 12
13.5
You divide 12/8 and then add 12

The sales tax is $44.75 on a TV that sells for $895. What is the sales tax rate as a percentage?

Answers

It is 5%. Hope this helped you! Sorry it took so long for someone to get back to you.

hello! this isn't a solving question, but I need some help here! Does anyone know any good websites to study for coordinate planes, conversions from fractions to decimals, reflections, points over x-axis and y-axis? Please help a student out! My test is in a few days!

Answers

Answer:

I know about a website for fractions to decimals, It's call "fractions to decimals calculator soup."

Step-by-step explanation:

N divided by 5+6 = 4

Answers

n/(5+6)=4 Simplify the problem. n/11=4 Get n by itself. 11(n/11)=(4)11 This removes 11 on the left side and you must multiply the right side if you multiplied the left. n=4×11 Multiply. n=44 (OPTIONAL) Check your work. 44/(5+6)=4 44/11=4 4=4 n=44 is correct.
The answer to your question is 44.

~~~ 30 POINTS ~~~Directions: Write an equation to represent each relationship. Then solve the equation.

1. Two less than 3 times a number is the same as the number plus 10.
2. A number increased by 4 is the same as 19 minus 2 times the number.
3. Twenty less than 8 times a number is the same as 15 more than the number.

Answers

1)   3x-2=x+10


Now, lets solve this step-by-step.

3x - 2 = x + 10
-x             -x

3x - x = 2x                                2x - 2 = 10

2x - 2 = 10
2x - 2+2 = 10+2          The inverse operation helps isolate the variable. 

2x = 12

2x/2 = 12/2

x = 12/2
x = 6

Answer: x = 6

2) x + 4 = 19 - 2x 

We can solve this much faster

x + 4 = 19 - 2x
                  +2x

x+2x = 3x

3x + 4 = 19
      -4     -4

19-4 = 15

3x= 15
3x/3 = 15/3
x= 5

Answer: x = 5

3) 8x - 20 = x + 15

Much faster now!!

8x - 20 = x + 15
               -x
8x-x = 7x

7x - 20 = 15
      +20   +20
15+20 = 35

7x = 35
7x/7 = 35/7
x = 35/7
x = 5

Answer: x= 5
let x be the unknown number of all 3 equations
1.) 3x - 2 = x + 10 x=6
2.) x + 4 = 19 - 2x x=5
3.) 8x - 20 = x + 15 x=5
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