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3 years ago

What is -15/16÷7/12= k

Mathematics

1 answer:

Feliz [49]3 years ago

8 0

Solve for k

by simplifying both sides of the equation, then isolating the variable.

Exact Form:

k= −45/28

Decimal Form:

k=−1.60714285…

Mixed Number Form:

k= −1 17/28

so its the top one :)

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What is the difference between rational and irrational numbers?

Olenka [21]

Rational numbers can be written as a fraction. They can be integers, whole numbers, natural numbers, repeating decimals, terminating decimals and obviously fractions. Irrational numbers can not be written as a fraction. They are usually non terminating non repeating decimals (like Pi).

3 0

3 years ago

Read 2 more answers

I The cost CC (in dollars) of making n watches is represented by C=15n+85C=15n+85. How many watches are made when the cost is $3

anyanavicka [17]

C = 15n + 85....when C = 385

385 = 15n + 85
385 - 85 = 15n
300 = 15n
300/15 = n
20 = n <== 20 watches were made

8 0

3 years ago

X^2-4x-5x=0<br><img src="https://tex.z-dn.net/?f=x%20%7B2%7D%20%20-%204x%20-%205x%20%3D%200" id="TexFormula1" title="x {2} - 4x

Bogdan [553]

Answer:

x = 9 or x = 0

Step-by-step explanation:

Solve for x over the real numbers:

x^2 - 4 x - 5 x = 0

x^2 - 4 x - 5 x = x^2 - 9 x:

x^2 - 9 x = 0

Factor x from the left hand side:

x (x - 9) = 0

Split into two equations:

x - 9 = 0 or x = 0

Add 9 to both sides:

Answer: x = 9 or x = 0

7 0

3 years ago

Read 2 more answers

Can someone please help, will give the brainiest.

Studentka2010 [4]

Answer:

Step-by-step explanation:

As it is supposed to be linear, we just subtract two adjacent months to find the difference.

$13,849.60 - $13,610.81 = $238.79 which will be her monthly payment (Q 14)

December's balance is $13,610.81 - $238.79 = $13,372.02 (Q13)

At the end of September, her first payment, her balance was

$13,849.60 + $238.79 = $14,088.39 and her original purchase price was

$14,088.39 + $238.79 = $14,327.18

so an equation for the current balance B at any month m is

B = (-$238.79)m + $14,327.18

We verify this by testing for February

B = (-$238.79)6 + $14,327.18 = $12,894.44 which checks out

It will take 14327.18 / 238.79 = 60 months to pay it off or 5 years (Q 15)

5 0

3 years ago

A bad of marbles contains 2 blue marbles and 8 yellow marbles, what is the probability of randomly selecting a yellow marble

Y_Kistochka [10]

Answer:

80% probability

Step-by-step explanation:

Since there are 8 yellow marbles out of 10 marbles in all, that equals 8/10 which is the percent of 80.

5 0

3 years ago