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Rus_ich [418]
2 years ago
11

The difference from home to

Mathematics
1 answer:
Amanda [17]2 years ago
6 0

Answer:

\frac{3}{8}\ mile

Step-by-step explanation:

-Amy walks a distance of 7/8 mile

-Tom walks a distance of 4/8 mile.

#We immediately notice that Amy has walked a longer distance than Tom.

We subtract Tom's distance from Amy's to find how much further Amy walked;

\bigtriangleup d=d_A-d_T\\\\=\frac{7}{8}-\frac{4}{8}\\\\=\frac{3}{8} mile

Hence, Amy has walked 3/8 miles further than Tom has.

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Evaluate 9 √9.<br><br> A <br> 27<br><br> B <br> √27<br><br> C <br> 81<br><br> D <br> 243
rosijanka [135]

Answer: 27

Step-by-step explanation:

4 0
3 years ago
Nrite the equation of the line whose slope is 2 and y intercept is -1.
Marysya12 [62]

Answer:

y=2x-1

Step-by-step explanation:

3 0
2 years ago
Evaluate 7P4<br> Evaluate 12C5
Verdich [7]

Answer:

Below.

Step-by-step explanation:

7P4

= 7! / (7-4)!

= 7*6*5*4*3*2*1 / ( 3*2*1)

= 7*6*5*4

= 840.

12C5

= 12! / (12-5)! 5!

=  12*11*10*9*8*7*6*5*4*3*2*1 / ( 7*6*5*4*3*2*1 * 5*4*3*2*1)

=  12*11*10*9*8 /  5*4*3*2*1

= 792.

5 0
2 years ago
The original quantity is 20 and the new quantity is 15. Adam incorrectly says the percent decrease is about ​14.29%. What is the
Yuki888 [10]

Answer: A. divided the difference of the two quantities by the sum of the two quantities.

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

Explanation:

The difference of the quantities is 20-15 = 5

The sum of the quantities is 20+15 = 35

Dividing those results leads to 5/35 = 0.142857 which rounds to 0.1429

That converts to 14.29%

This is likely the path Adam took. This path is incorrect. The correct steps are shown below

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

Difference = 20-15 = 5

Divide the difference over the original quantity

5/20 = 1/4 = 0.25 = 25%

We have a 25% decrease because the new quantity (15) is smaller than the old quantity (20)

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

Here's another way to approach the problem

A = old value = 20

B = new value = 15

C = percent change

C = [ (B-A)/A ] * 100%

C = [ (15-20)/20 ] * 100%

C = (-5/20)*100%

C = -0.25*100%

C = -25%

The negative C value means we have a negative percent change, ie we have a percent decrease. So this is another way to get a 25% decrease.

4 0
2 years ago
Read 2 more answers
Simplify the expression 2x+3(x-6)
Bingel [31]

Answer:

5x-18

Step-by-step explanation:

2x+3x-18

5x-18

if ur in college how do u not know this :P

8 0
2 years ago
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