MATHEMATICS MIDDLE SCHOOL

1.25 inched represents 20 miles. long wood and milton are 5 inches apart on the map. what’s the actual distance between long wood and miltown

Answers

Answer 1
Answer:

Hi!

Let's set up a proportion and cross-multiply.

(1.25)/(5) (20)/(x)

5 x 20 = 100

100/1.25 = 80

The actual distance is 80 miles.

Hope this helps! :)

-Peredhel

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Answers

Answer:

C

is you answers because i did the math so u dont have to ;)

30% of what number is 42?

Answers

30% of 140 is 42. 42/3 is 14 and 14*10 is 140.

Y = −x + 2y = 3x + 1

Which description best describes the solution to the system of equations?


line y=-x+2 intersects line y=3x+1.
Lines y=-x+2 and y = 3x + 1 intersect the x axis
lines y=-x+2 and y 3x+ 1 intersect the y-axis

Line y=-x+2 intersects the origin

Answers

line y=-x+2 intersects line y=3x+1.

this is right ↑ I took the test myself and was a little unsure bc some people were saying it was 'lines y=-x+2 and y=3x+1 intersect the y-axis' but it is actually A! Thanks so much! Have a great day!

C. A rational number is a number that can be expressed as a fraction with both thenumerator and denominator being integers. How are rational expressions related to
rational numbers?

Answers

Answer:

Step-by-step explanation:

Rational expressions are bascially an expression where one polynomial is divided by another.  And a polynomial is a series of terms like ax^b added together, where the exponents, what I labeled as b, need to be positive integers.

Solve −2x − 15 = 6x + 9. (1 point)

Answers

The answer is -3 isolate x on one side and solve for x
-2x-15=6x+9
+2x      +2x
-15=8x+9
-9      -9
-24=8x
-24/8=8x/8
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How who u solve 5+2(x-3)

Answers

5+2(x-3)
First you do everything in the parentheses. 
2 times x= 2x 
2 times -3=-6
Now you have 5 + 2x- 6
5 plus -6=-1
Now you have 2x-1=0 
Add the -1 to both sides. 
2x-1+1=0+1
Now simplify that to get: 2x=1
Now you divide each side by 2 to get x by itself. 
So, x= 1/2
To solve 5+2(x-3), you must do the following...

You must use the distributive property to get an answer.

So, 2(x-3), correct? Okay, so first you multiply 2 times x, which would give you: 

2x

Then you multiply 2 times 3, which gives you 6.

So now, you have 5+2x-6 - (Basically, we just extended the problem.)

Then we just simplify, which gives you... (drumroll please...?) 2x-1.

Hope this helps!
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