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2 years ago

All of the following are terminating decimals except 1/8 2/5 2/3 17/50

2 answers:

4 0

First of all, what is a terminating decimal, a decimal that does keep repeating and going on forever. 1/8 = 0.125 CHECK! 2/5 = 0.4 CHECK! 2/3 = 0.666666666666666666666 BIG X! 17/50 = 0.34 CHECK! The only BIG X was 2/3 and 2/3 is our answer.

faust18 [17]2 years ago

3 0

A terminating decimal is a decimal that has numbers that DO NOT go on forever.
To figure this out we need to divide the fractions given:

1/8=0.125

2/5=0.4

2/3=0.666666666666=> (repeating)

17/50=0.34

As you can see the only fraction that has a repeating decimal (and is not a terminating decimal is 2/3). Therefore our answer is 2/3

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Bas_tet [7]

Answer:

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Step-by-step explanation:

The formula for the area of a circle is pi r^2. r being the radius. Because you have the radius, and pi is 3.14 in this case, your new formula is A=3.14(15)^2. 15 squared is 225, times 3.14 gives you 706.5

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2 years ago

What is the value of the function at x=−3? A) y = 0 B) y=−3 C) y = 4 D) y = 3

Alexus [3.1K]

Answer:

y=4

Step-by-step explanation:

From the graph we can see that-

when, x=-3 , y=4

That is , the graph passes through (-3 , 4)

So,

for x=-3 ,

we get y=4

So, the answer is y=4

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3 years ago

Train a is traveling at 30 mph faster than train b. If train a travels 350 miles in the same amount of time that train b travels

GalinKa [24]

Answer:

20 mph

Step-by-step explanation:

Let speed of Train a = Va mph

Let speed of Train b = Vb mph

Va = Vb + 30

Let time taken for Train a = Ta

Let time taken for Train b = Tb

time taken = distance travelled/speed

Ta = 350/Va = 350/(Vb+30)

Tb = 140/Vb

But they both travel in the same amount of time.

So, Ta = Tb

$\frac{350}{v_{b} + 30}=\frac{140}{v_{b}}$

Cross multiply

$350v_{b} = 140(v_{b} + 30)\\\\350v_{b} = 140v_{b} + 4200\\\\350v_{b} -140v_{b} = 4200\\\\210v_{b} = 4200$

Divide both sides by 210

$\frac{210v_{b} }{210} \frac{4200}{210} \\\\v_{b} = 20 mph$

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Step-by-step explanation:

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