All categories

3 years ago

I have two story problems.

Mathematics

1 answer:

vekshin13 years ago

7 0

Let lucy = l & neighbour= n
l = n +4
l + n= 14 years
substitute l with n +4
(n +4) + n = 14
2n +4 =14
n=5 years
l = n + 4 lets substitute n with 5
l = 5 + 4
lucy = 9 years

You might be interested in

If a monopolist supplies goods at a price; P = 170 - Q, with marginal cost; MC = 52. Find the quantity and price

Arada [10]

Answer:

Quantity = 59 units

Price = $111

Step-by-step explanation:

The Demand function is given by

$P = 170 - Q$

The Marginal cost is given by

$MC = 52$

We are asked to find the quantity and price of goods.

Firstly, obtain the Marginal revenue function from the demand function

The Total revenue is given by

$TR = P \times Q \\\\TR = (170 - Q) \times Q \\\\TR = 170Q - Q^2$

The Marginal revenue is the derivative of the Total revenue,

$MR = \frac{d}{dQ} (TR) = 170Q - Q^2 \\\\MR = \frac{d}{dQ} (TR) = 170 - 2Q \\\\$

Assuming that the monopolist maximizes profits,

$MR = MC \\\\170 - 2Q = 52\\\\2Q = 170 - 52\\\\2Q = 118\\\\Q = 118/2\\\\Q = 59$

Therefore, the quantity is 59 units.

The price of each good is

$P = 170 - Q \\\\P = 170 - 59 \\\\P = 111$

Therefore, the price is $111.

3 0

4 years ago

Solve the Questions following 81, 8-91, 4pda - Зроби 1. Xut 43 ,

posledela

Answer:

Solve the

Questions

following

81, 8-91, 4pda - Зроби

Xut 43

Step-by-step explanation:

Solve the

Questions

following

81, 8-91, 4pda - Зроби

Xut 43

4 0

3 years ago

Using pi 3 what is the answer

konstantin123 [22]

Answer:

12mm

Step-by-step explanation:

circumference (distance around) is equal to πd.

here, if π is 3, we do 3 x the diameter, which is 4. 3 x 4 = 12mm

6 0

3 years ago

X/5 + 6=10

Komok [63]

Step-by-step explanation:

first you do x/5=10-6 the second step you do is x/5=4 the third step is x=4x5 finally the answer is x=20

8 0

3 years ago

Solve for x in the equation X2 - 12x+36-90 X = 6+3/10 X=6+2V7 X= 12+3 22 x= 12+3/10

8_murik_8 [283]

Answer:

x = 6 + 3√10

Step-by-step explanation:

Since this is an unfactorable expression, we need to apply the Quadratic Formula, -b ± √b² - 4ac\2a [radical wrapped around b² - 4ac]. Evaluate, then you will end up with the answer above.

I am joyous to assist you anytime.

3 0

4 years ago