MATHEMATICS MIDDLE SCHOOL

I need help on a algebra word problem...There is a rat and a mouse.
The rat is x years old.
The mouse is 15 years younger than the rat...
How to convert that into a math equation...

Answers

Answer 1
Answer:
Step #1: 
Make up symbols for the age of the rat
and the age of the mouse.

They already told you that 'x' is the age of the rat.
Let's say that 'M' is the age of the mouse. 

Step #2:
Translate the words into a math sentence,
something like this:

"The mouse is              15 years younger than      the rat."
             \/                                    \/                                \/  
"The mouse's age is    15 years less than            the rat's age."

The mouse's age      is        the rat's age          but 15 years less.
           \/                    \/                \/                          \/
           M                   =                x                        - 15

                            M  =  x - 15

Does this help you see it ?
Answer 2
Answer: Since their is a rat and a mouse, we need to figure out their ages.

Ok, so we know that the rat is x years old, we also know that the mouse is 15 years YOUNGER than the rat. 

Let us set up an equation.

We know that younger usually refers to subtraction.
And we know that x is our variable, and that we need to solve for the mouses age.

m = mouse
x= rats age

m = x - 15

Our final answer: The equation is m= x - 15

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Need help please, thanks! A map has a scale of 1 inch:18 kilometers.

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I don't know, please explain! :(

Answers

Given:
1 inch : 18 kilometers

Let us use the ratio and proportion method:

a:b = c:d where ad = bc

0.8 inches is 14.4 kilometers

1 : 18 = 0.8 : x
x = 0.8 * 18
x = 14.4 km

1.4 inches is 25.2 kilometers

1: 18 = 1.4 : x
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Which of the following is the solution set to the inequality −2/5x+14>20?Select one:
A. x < -64
B. x > -64
C. x < -15
D. x > -15

Answers

Answer:

its C

Step-by-step explanation:

you do inverse operations so you subtract 14 from 20 which gives you 6 and you divide that by negative two fifths and you get negative fifteen but you flip the sign bc you divided by a negative integer so the answer is C x<-15

     Identify the like terms. 9x, 10y, –9y,  10   A. 9x and 10   B. 10y and 10   C. 10y and –9y   D. 9x and -9y

The term 25ab and which other term are like terms?   A. 25   B. 24a   C. 5ba   D. 10b

Combine like terms.15w – 28w   A. –43w   B. –13w   C. –13   D.  

Combine like terms.9 + 18s – 7s   A. 20s   B. 9 + 11s   C. 9 – 11s   D. 20

Combine like terms.      5/6X take away -2/3X= Answers: A. 1/6X B. 1/3X C. 1/2X D. X  

                                                                                                                                                   

Answers

Answer:

1) Option C

2) Option C

3) Option B

4) Option B

5) Option A

Step-by-step explanation:

1)  Identify the like terms ?

Terms are 9x, 10y, –9y,  10.

Like terms are those having same variable.

i.e. 10 y and -9y are like terms.

So, Option C is correct.

2) The term 25ab and which other term are like terms?

Option terms are 25,24a,5ba,10b

Like terms are those having same variable form.

i.e. 25ab and 5ba are like terms.

So, Option C is correct.

3) Combine like terms.

Expression 15w-28w

combine like terms means adding and subtracting like terms with same variable.

i.e. 15w-28w=-13w

So, Option B is correct.

4) Combine like terms.

Expression 9+18s- 7s

combine like terms means adding and subtracting like terms with same variable.

i.e. 9+18s- 7s=9+11s

So, Option B is correct.

5) Combine like terms.

Expression (5)/(6)x-(2)/(3)x

combine like terms means adding and subtracting like terms with same variable.

i.e. (5)/(6)x-(2)/(3)x=(1)/(6)x

So, Option A is correct.
These are my answers
1.C
2.C
3.B
4.B
5.A

Is 5/6 = > < than 7/8

Answers

Answer: 5/6>7/8

Hope that helps
5/6>7/8
Hope it helps u

The area of a circle is found with the formula A = ?, where y represents 3.14. If a tile artistis placing tiles in a circular mosaic pattern and the area of the circle is 658 square feet, what is
the approximate radius of the circle in feet?

Answers

The approximate radius of the circle in feet is 14.5

Solution:

Given, a tile artist is placing tiles in a circular mosaic pattern and the area of the circle is 658 square feet,

We have to find what is the approximate radius of the circle in feet?

The area of a circle is found with the formula \mathrm{A}=\mathrm{yr}^(2)

where "y" represents 3.14 and r is radius. So now, according to given information,

\begin{array}{l}{y r^(2)=658} \n\n {\rightarrow 3.14 * r^(2)=658} \n\n {\rightarrow r^(2)=209.55} \n\n {\rightarrow r=14.4759}\end{array}

Hence, the radius of the given circle is 14.5 feet approximately

which figure appears to have only 1 line of symmetry AND YOU ARE GOING TO HAVE TO OPEN THE PICTURE FOR YOU TO SEE THE QUESTION

Answers

The answer is A. Because you can only fold it up and down and it matches the other side of the folded crease. You can't any other way.
Plus, if you folded B it would be the same, but you can fold it more than once, and if you try to fold C. and D. they wouldn't match the other side of the folded crease.

Hope I Helped!!!
the answer is .......A
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