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lana [24]
2 years ago
5

The variable y varies directly with x . If x=2 and y = −7, find y when x = −6.

Mathematics
2 answers:
telo118 [61]2 years ago
8 0

Step-by-step explanation:

\frac{2}{ - 6}  =  \frac{ - 7}{y}  \\ y =  \frac{( - 6) \times  (- 7)}{2}  \\ y =  \frac{42}{2}  \\  \boxed{y = 21}

<h2>21 is the right answer.</h2>
suter [353]2 years ago
7 0

Answer:

Step-by-step explanation:

X=2

Y=-7

Then if x is -6 u have to find what times 2 is -6 Which is -3.

so -7 x -3 is 21. Y is 21

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Step by step explanation

3 0
2 years ago
There are 10 marbles in a bag. Tyrell draws one marble out at a time without looking and replaces it in the bag. Tyrell did this
LekaFEV [45]
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6 0
3 years ago
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Ilya [14]

Answer:

X = 7

Step-by-step explanation:

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6 0
3 years ago
One year, the population of a city was 352,000. Several years later it was 337,920.
kvasek [131]

hi

here is  the  method :

you take  Value 1  and Value 2

And you do :   ( Value 2 - Value 1)  / (Value 1 )    * 100

Here we have :    Value 1 = 352 000

                            Value 2 =  337 920

So now we apply :

( 337 920 - 352 000 )  /  ( 352 000)   * 100 =  -4  

Population decreased by by  4 %

You can also make :  

352 000 * X = 337 920

                 X =  337 920 / 352 000

                 X = 0.96

if  the multiplier is  0.96 ,  it's mean that we lost  1 -0.96 = 0.04  

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8 0
2 years ago
carter has 7,500 in a bank account that earns 3% simple interest per year. how much will be in the account after 5 years
allsm [11]

Answer:

11.25

Step-by-step explanation:

7500 times 0.03 times 5 = 1125

1125 divided 100 = 11.25

simple interest formula = Amount times Rate times Time

                                                         Divide 100

8 0
3 years ago
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