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krok68 [10]
3 years ago
6

Christina can paint a chair in

Mathematics
1 answer:
Maurinko [17]3 years ago
6 0

Answer:

<em>2</em>

Step-by-step explanation:

<em>I think because I had the same kind of question and the answer was 2 </em><em>,</em>

<em>hopefu</em><em>lly</em><em> </em><em>it</em><em> </em><em>helps</em><em> </em><em>u</em><em /><em>☺️</em>

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Marcus can walk 1 mile to the library in the same time he can bicycle 2.5 miles to the sporting goods store. His speed on the bi
Maksim231197 [3]
Let
x------> <span>speed on the bicycle
y------> </span><span>speed walking

we know that
</span>x=6+y------> equation 1<span>
speed=distance /time-------> time=distance/speed
1/y=2.5/x-------> y=x/2.5------> x=2.5y-------> equation 2

equals 1 and 2
6+y=2.5y-----> 2.5y-y=6------> 1.5y=6-----> y=6/1.5-----> y=4 mi/h
x=6+y-----> x=6+4-----> x=10 mi/h

the answer is
the speed walking is 4 mi/h

</span><span>
</span>
6 0
4 years ago
Solution to (x-2) (x+10) = 13
Grace [21]

Answer:

-11,3

Step-by-step explanation: using foil (x-2)(X+10)=x^2+8x-20

x^2+8x-20-13=13-13 X^2+8x-33=0 factoring you get (x+11)(x-3)=0 so x+11=0

x-3=0

x=-11,3

if you found this helpful please thank me

4 0
3 years ago
Ainsley lives in a town 360 miles directly north of Orlando, and one Saturday, she takes the train from her town to the city. he
iragen [17]
By definition we have to:
 d = v * t
 where,
 d: distance
 v: speed
 t: time
 We have then that the speed is:
 (360-210) = v * 2.5
 Clearing we have:
 v = (360-210) /2.5
 v = 60 mph
 We now write the generic equation of distance:
 d (x) = 60x
 Where,
 x: time
 Answer:
 
an equation that represents (x), the distance Ainsley is from Orlando after x hours is:
 
d (x) = 60x
5 0
4 years ago
(9x−2.25)=(1.6+9x)<br><br> help
mel-nik [20]
Begin solving like you normally would. Add 2.25 to both sides and subtract 9x from both sides to try getting all x values on one side. However, you will find that after subtracting 9x from both sides, all x values go away, and you end with -2.25=1.6. This is not true (-2.25 is not 1.6), so the answer is no solution. There is no value of x which satisfies that equation.
4 0
3 years ago
) A random sample of n measurements was selected from a population with unknown mean μ and standard deviation σ. Calculate a 95%
UNO [17]

Answer:

ask MisterBrainly for help

4 0
3 years ago
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