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antiseptic1488 [7]
4 years ago
11

The pair values below are from an inverse variation.find the missing value(8,11),(10,y)

Mathematics
1 answer:
d1i1m1o1n [39]4 years ago
4 0

The inverse variation formula is xy = k

In the first set of values you have x and y so you can solve for k:

8 x 11 = k

k = 88

Now in the second set of values you have x and we have k from the first set so we have:

10 x y = 88

Solve for y by dividing both sides by 10:

y = 88 /10

y  = 8.8

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Find the area of abc. round your answer to the nearest tenth. b=87, a = 10.1, c = 9.8
Advocard [28]
The area of the triangle can be calculated through the equation,
             A = sqrt ((s)(s - a)(s - b)(s - c))
where A is area, s is the semiperimeter ((a + b + c)/2), a, b, and c are the sides given above.

The presented equation above is the Heron's formula.

Substituting the known values,
             s = (8.7 + 10.1 + 9.8) / 2
              s = 14.3

    A = sqrt ((14.3)(14.3 - 8.7)(14.3 - 10.1)(14.3 - 9.8))
           <em>A = 38.9 units squared

</em>
Thus, the answer to this item is not among the choices. <em>
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8 0
3 years ago
You plan on purchasing a car in the next year. The car that you are interested in lists for $23,000 after taxes, license, and do
oksano4ka [1.4K]

Answer:

c. 8 months.

Step-by-step explanation:

First off let's get the current total of how much we have saved.

2/3 of $23,000 = 15,333.33.

Now we need to get our total salary to calculate for our Social Security and Medicare.

Total Salary : $1312.00 x 2 = $2,624.00

Social Security : 6.2% or 0.062 x 2,624 = $162.69

Medicare : 1.45 or 0.0145 x 2,624 = $38.05

Now that we have our Social Security and Medicare, we can then solve for our taxes.

Taxes: $53 + $101.35 = 154.35 x 2 = $308.7

Now we can add our monthly expenses to the other expenses.

Monthly Expenses : $1,150.12

1,150.12 + 162.69 + 38.05 + 308.7

= $1659.56 Total Expenses.

Now that we have our total expenses we simply subtract it to our monthly salary.

2624.00-1659.56

= $964.44 Extra Money Monthly

Now we proceed to solve for how much more we need to make the total payment.

23000 - 15,333.33

= 7666.67

Now that we have out total balance, we just need to divide the balance to our extra money monthly.

7666.67 / 964.44

= 7.949 Months or 8 Months

6 0
3 years ago
The additive invers of the numer <br><img src="https://tex.z-dn.net/?f=%20%5Cfrac%7B3%7D%7B7%7D%20" id="TexFormula1" title=" \fr
GuDViN [60]

Answer:

-\frac{3}{7}

Step-by-step explanation:

The additive inverse of a number (its "opposite") is what you add to the given number to get a sum of zero.

\frac{3}{7} + (-\frac{3}{7}) =0

6 0
3 years ago
Box and tail set up for:
Aleksandr-060686 [28]

Answer:

Step-by-step explanation:

Assuming that all of the 255 sold seats were filled, then

[tex]\frac{sold}{total} *100\\[percent filled]

(225/260)*100=86.53%

100%-86.53%=13.4%

13.4% of seats are empty!

3 0
4 years ago
Multiply 9.25 x10⁴by 6.80 x10⁹
xeze [42]
92,500 x 6,800,000,000


6.29e+14


Mark brainliest please



Hope this helps you
6 0
3 years ago
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