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mylen [45]
2 years ago
11

Could the value of x below be 4, 6, 9, or 10

Mathematics
2 answers:
Hunter-Best [27]2 years ago
8 0

Answer:

I believe its 6

Step-by-step explanation:

Because line 3x is very similar to line 19 but not exactly the same but if you multiply 3 by 6 it gives 18 which is the nearest number to 19.

lions [1.4K]2 years ago
3 0

Answer:

the answer is 6 i think

Step-by-step explanation:

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two brothers marco and fernando are training for a marathon marco runs at a rate of 6miles per hor. Fernando funs at at a rate o
satela [25.4K]
We know that
speed=distance/time
solve for time
time=distance/speed

in this problem
<span>Marco runs at a rate of 6 miles per hour. 
</span><span>Fernando funs at a rate of 7.2 miles per hour
Difference=7.2-6=1.2 miles/hour
so
speed=1.2 miles/hour
distance=0.3 miles
time=?
</span>time=distance/speed-----> 0.3/1.2-----> 0.25 hour-----> 0.25*60=15 minutes
<span>
the answer is
0.25 hour (15 minutes)

Alternative Method
Let 
x---------> Fernando's distance when Marco is 0.3 miles apart

</span>Fernando funs at a rate of 7.2 miles per hour
<span>for distance =x
time=x/7.2------> equation 1

</span>Marco runs at a rate of 6 miles per hour. 
for distance=x-0.30
time=(x-0.30)/6------> equation 2

equate equation 1 and equation 2
 7.2*(x-0.3)=6x-----> 7.2x-2.16=6x
7.2x-6x=2.16------> x=2.16/1.2-------> x=1.8 miles

time=x/7.2-----1.8/7.2=0.25 hour
6 0
3 years ago
If 150 empty water bottles weigh 4.5 pounds what do you expect 90 water empty bottles to weigh?
MakcuM [25]
It's 2.7 pounds because I set up a proportion of 150 over 90 = 4.5 over X and multiplied 90 * 4.5 divided by 150
6 0
3 years ago
Read 2 more answers
What is the perimeter of the triangle expressed as a polynomial?
ratelena [41]
Add the polynomials together:
(5x-2)+(2x-3)+(4x+3)
Combine like terms:
(5x+2x+4x) + (-2+-3+3) = 11x-2

So the answer is D.
8 0
3 years ago
Ryan runs 1.5 miles on his first day of training for a road race. The next day he increases his distance run by 0.3 miles. The d
SVEN [57.7K]

Answer:

sorry I need points

Step-by-step explanation:

so so sorry

8 0
2 years ago
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Write this numbers down from the smallest to the largest <br> 0.3, 0.01, 0.38, 0.127, 0.1
LiRa [457]

Step-by-step explanation:

0.001 < 0.1 < 0.127 < 0.3 < 0.38

8 0
3 years ago
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