INVERSE PROPORTIONALITY ????q is inversely proportional to the square of t
when t = 5, q = 9.6
a) find the formula for q in terms of t
b) calculate the value of q when t = 8
c) when q = 2.4, calculate the value of t

Answers

Answer 1

Answer: easy peasy
if you had
y is inversely proportioal as x that means
y=k/x wher k is a constant

q is invesely peorportionto the square of t
q=k/(t^2)
t=5, q=9.6
easy peasy
subsiute and find k
9.6=k/(5^2)
9.6=k/25
mutiplyb oths ides by 25
240=k

the equation is
q=240/(t^2)
when t=8 then
q=240/(8^2)
q=240/64
q=3.75

q=2.4 find t
2.4=240/(t^2)
multiply both sides by t^2
2.4t^2=240
divide both sides by 2.4
t^2=100
square root both sides
t=10

a. q= $(240)/(t^(2))$
b. q=3.75
c. t=10

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Answers

Answer:

Step-by-step explanation:

Nick is now seven times as old as Harry. In 6 years, Nick will be five times as old as Harry. How old will Harry be in 6 years?If x represents Harry's age now, then which of the following equations could be used to solve the problem?

Answers

i think its 7x+6=5(x+6) if its wrong then me so sorry. its the answer i chose tho

Let x represent Harry's age now, and Nick's age now is 7x. [t]
In 6 years, Harry is x + 6 , and it is given that Nick's age will be 5(x+6). [t+6]

Combining [t] and [t+6], 7x + 6 = 5(x+6).
So the formula 7x + 6 = 5(x+6) represents the problem.

And x = 12 , so Harry's age in 6 years will be x +6 or 18 years .

I hope this helps!

What is £56 divided in a ratio of 4:3?

Answers

In a ratio you must figure out the total number of parts. In this case we have a 4 part ratio and a 3 part ratio for 7 parts.

Each part of the ratio must be 1/7 of 56. So we divide 56/7 =8.

That means each part of the ratio is equal to 8.

We have 4 parts of the ratio that we must multiply by 8 4*8= 32
We have 3 parts of the ratio that we must multiply by 8 3*8 = 24

Therefore the ratio should be 32:24

What are the leading coef 18w+4-w^(9)

Answers

Answer: -1

Step-by-step explanation:

The leading coefficient is the coefficient of the number with the largest degree.

$\displaystyle 18w+4-w^9$

Here, we can tell this is -1 because $-w^9$ is the term with the largest degree and its coefficient is -1.

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