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IrinaVladis [17]
3 years ago
5

Select all ratios equivalent to 7:10

Mathematics
1 answer:
serg [7]3 years ago
3 0

Answer: ratio:14:20    work:7*2=14   10*2=20       ratio:21:30    work: 7*3=21   10*3=30       ratio:28:40  work:7*8=28     10*4=40        

Step-by-step explanation: Just multiply the number on the left and right side of the ration by the same number to get an equivalent ratio. I gave some examples above. I hoped this helped.

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determine the kinetic energy of a 1000-kg roller coaster car that is moving with a soeed if 20.0 m/s.
Alona [7]

200000J/200KJ

Step-by-step explanation:

using k.e=1/2(mv2)

k.e=1×1000×20²/2

k.e=400000/2

k.e=200000J/200KJ

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What is the solution to the system of equations graphed below? ​
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An element with mass 330 grams decays by 25.5% per minute. How much of the element is remaining after 5 minutes, to the nearest
babymother [125]
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7 0
3 years ago
Read 2 more answers
Use f(x)=(2x+1)/(3x-2) and g(x)=5x-1 to find <br> (gof)(x)
Orlov [11]

Answer:

From the functions f(x) and g(x) we have (g\circ f)(x)=\frac{7(x+1)}{3x-2}

Step-by-step explanation:

Given that the functions f is defined by f(x)=\frac{2x+1}{3x-2}

and g is g(x)=5x-1

To find the (g\circ f)(x) :

(g\circ f)(x)=g(f(x))

=g(\frac{2x+1}{3x-2})

=5(\frac{2x+1}{3x-2})-1

=\frac{10x+5}{3x-2}-1

=\frac{10x+5-1(3x-2)}{3x-2} ( by using the distributive property )

=\frac{10x+5-3x+2}{3x-2}

=\frac{7x+7}{3x-2} ( adding the like terms )

=\frac{7(x+1)}{3x-2}

Therefore (g\circ f)(x)=\frac{7(x+1)}{3x-2}.

5 0
4 years ago
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