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trapecia [35]
3 years ago
12

Assume that y varies directly with x. If y = 18 when x = -3, find x when y = 6.

Mathematics
2 answers:
Reil [10]3 years ago
6 0

Answer:

x=-+1

Step-by-step explanation:

ArbitrLikvidat [17]3 years ago
3 0

Answer:

x=-1

Step-by-step explanation:

y=kx

18=-3*k

k=-6

6=x*-6

x=-1

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PLEASE HELP!!!!
Allushta [10]

Answer:

B. 165

Step-by-step explanation:

Let w represent the number of weeks.

We have been given that a wrestler currently weighs 189 pounds and is losing 0.5 of a pound per week. So the weight lost by wrestler in w weeks would be 0.5w.

The total weight of wrestler after w weeks would be:

189-0.5w

We are also told that the wrestler needs to weigh more than 165 pounds but less than or equal to 185 pounds. This means that total weight of wrestler should be less than or equal to 185 pounds and greater than 165 pounds.

We can represent this information in an inequality as:

165

Therefore, option B is the correct choice.

4 0
3 years ago
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Nady [450]

Answer:

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8 0
3 years ago
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Which equation has the solutions X=1 +-SQRT 5?
Vesna [10]

Answer:

D is correct. x^2-2x-4=0

Step-by-step explanation:

We are given the root of the equation

x=1+\pm \sqrt{5}

If we are given solution of the equation then find equation using formula.

If a and b are the solution of equation then equation would be (x-a)(x-b)=0

Here, a=1+\sqrt{5} , b=1-\sqrt{5}

Equation form would be (x-1-\sqrt{5})(x-1+\sqrt{5})=0

Now we simplify the above equation to get correct option.

x^2-x+x\sqrt{5}-x+1-\sqrt{5}-x\sqrt{5}+\sqrt{5}-5=0

x^2-2x-4=0

So, D is correct.  x^2-2x-4=0

8 0
3 years ago
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9 of 10
Aleks04 [339]

\frac{3}{10}

Answer:

^^

Step-by-step explanation:

I just pressed 27/90 on the calculator hahahha

6 0
2 years ago
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Sara buys soil from a gardener to fill a planter.The gardener has 1.5 cubic feet of soil to sell for $6. Sara buys just enough s
Travka [436]
The first thing you should do is calculate the volume of the prism.
 We have then:
 V = h * L ^ 2
 Where,
 L: side of the square base.
 h: height.
 Substituting we have:
 V = (0.5) * (1) ^ 2 = 0.5 feet ^ 3.
 Then, we can make the following rule of three:
 1.5 feet ^ 3 ---> 6
 0.5 feet ^ 3 ---> x
 Clearing x we have:
 x = (0.5 / 1.5) * (6) = 2 $
 Answer:
 it will cost Sara 2 $ to completely fill her planter with soil
5 0
3 years ago
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