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AfilCa [17]
3 years ago
8

In an inverse variation, x = -6 when y = -1/2. What is the value of y when x = 4?

Mathematics
1 answer:
Artist 52 [7]3 years ago
8 0

Answer:

9 \frac{1}{2}

Step-by-step explanation:

just add 5.5 to each number and make it in fraction

hop it helps you

please mark me as brainlist

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Convert the following repeating decimal to a fraction in simplest form .31 with the 1 repeating
bekas [8.4K]

Answer:

14/45

Step-by-step explanation:

So we have the fraction:

0.3\bar1=0.31111...

We can do this algebraically. Follow to following steps:

Let's let this number equal to n. Thus:

0.31111...=n

Since there is only 1 digit repeating, let's multiply everything by 10. So:

3.1111...=10n

Now, subtract n from both sides:

3.1111-n=10n-n

On the left, substitute the number for n. On the right, combine like terms:

3.1111...-0.31111...=9n

All of the 1s will cancel. So:

3.1-0.3=9n

Subtract:

2.8=9n

Divide both sides by 9:

n=2.8/9

Remove the decimal by multiplying both sides by 10:

n=28/90

Reduce:

n=14/45

And we're done!

Use a calculator to check:

14/45\stackrel{\checkmark}{=}0.31111...

7 0
3 years ago
Carl saved $22 in the last 3 weeks.<br> About how much will he save after 20<br> weeks?
olga_2 [115]

22 / 3 = 7.3333

7.3333 * 20 = 146.67

$146.67

5 0
4 years ago
Pls answer this I need this in 5 mins
zzz [600]

Answer:

x=17

Step-by-step explanation:

3x+5+2x=90

5x=85

x=17

8 0
3 years ago
Read 2 more answers
At the moment a certain medicine is injected, it’s concentration in the bloodstream is 120 milligrams per liter. From that momen
PSYCHO15rus [73]

Answer:

C(t)=120(0.7)^t

Step-by-step explanation:

4 0
4 years ago
What's the equation of a circle whose diameter is 24 and whose center is at the origin
jekas [21]

Answer:

The standard form of the equation of a circle is,

                       (x - h)² + (y - k)² = r²

where the center is at (h, k) and its radius is r. Not sure what the equation would be sorry.

Step-by-step explanation:

3 0
3 years ago
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