3 years ago

I really need the answer for this problem

Mathematics

1 answer:

morpeh [17]3 years ago

3 0

The answer to your problem is 20%

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F = uv/u + v make u the subject

never [62]

I'm assuming that you mean

$\dfrac{uv}{u+v}$

because if you meant

$\dfrac{uv}{u}+v$

then u would simplify and you couldn't make it the subject.

Under this assumption, we start with

$F=\dfrac{uv}{u+v}$

We multiply both sides by $u+v$

$F(u+v)=uv$

We expand the left hand side:

$Fu+Fv=uv$

We move all terms involving u to the left and all terms not involving u to the right:

$Fu-uv=-Fv$

We factor u on the left hand side:

$u(F-v)=-Fv$

We divide both sides by $F-v$

$u=\dfrac{-Fv}{F-v}$

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3 years ago

Ryan ran 1 3/5 miles everyday for a week. How many miles did he run in all?

zheka24 [161]

Answer:

11 1/5 miles

Step-by-step explanation:

1 3/5 miles multiplied by 7 is 11 1/5

4 0

3 years ago

The function is defined by f(x)=x^2+6

jeka57 [31]

Answer: $9x^2 +6$

Step-by-step explanation:

$f(3x)=(3x)^2 +6=9x^2 +6$

8 0

2 years ago

Find the simple interest on a $340 loan at a 15% annual interest rate for 1<br> year

Crank

Answer:

$51.

Step-by-step explanation:

Interest I = PRT/100 where P = amount of the loan , R = rate and T = the times in years.

I = 340 * 15 * 1 / 100

= 5100/100

= $51.

4 0

3 years ago

Read 2 more answers

Determine the difference between the monthly payments on a $120,000 home at 6.5% and at 8% for 15 years

slega [8]

Answer:

I believe the answer is 1800

Step-by-step explanation:

120000 * 0.065 = 7800

120000 * 0.08 = 9600

9600 - 7800 = 1800

3 0

3 years ago