3 years ago

The ANSWER is what I need to know.

1 answer:

8 0

They both represent the expression, because when simplified the expression equals 8x+4, but you could also write it like 2(3x+2)+2x

You might be interested in

A train goes twice as fast downhill as it can go uphill, and 2/3 feet as fast uphill as it can go on level ground. If it goes 12

Yuri [45]

Answer:

0.5hrs

Step-by-step explanation:

Let the speed downhill be $x$ ,

Speed uphill is $0.5x$ . We are told than speed uphill is $\frac{2}{3}$ the speed on flat ground. Therefore the speed on level ground will be $\frac{0.5x}{2/3}=0.75x$ .

From this info, we can obtain the actual speed, $v_g$ on level ground as:

$x=120m/h\\0.75x=v_g\\\\\therefore v_g=\frac{0.75x \times 120m/h}{x}\\v_g=90m/h$

speed, distance and time have the relation $s=d/t$ so to obtain time to cover 45miles:

$t=d/s\\=45/90\\=0.5h$

Hence it takes 0.5hrs to cover 45miles on flat ground.

4 0

3 years ago

How far did we jump to go from 17 to 20<br>r=26-17<br>17+r=26

BabaBlast [244]

Answer:

Both are correct!

Step-by-step explanation:

if R = 26 - 17 = 9

now the next one

17 + R = 26

Same thing as R = 26 - 17 = 9

5 0

3 years ago

Read 2 more answers

7. Your friend is standing on top of a building, which is 130 ft. above the ground, looking down at a tree that is 40 ft. away f

oee [108]

I think you just divide the 130 ft by the 40 ft = 3.25 ??

8 0

3 years ago

If A c B and A N B= • then which of the following can be concluded about the sets A and B!

Sergio [31]

Step-by-step explanation:

Set A is a subset of set B if all the elements of A are also the elements of Set B.. (common element)

The above set have 0 common elements so.. if there is no common element and are subsets then it means that there arent any elements in both the sets

so, the answer for the question would be "both the Sets A and B are the empty sets"

6 0

2 years ago

A university has 27,900 students. In a random sample of 210 students, 14 speak 3 or more languages. Predict the number of studen

I am Lyosha [343]

First set up a proportion.
14/210 = x/27900
then divide 27900 by 210 which equals about 133
then multiply 14 by 133 which is 1862
your answer is 1862

7 0

3 years ago