3 years ago

Find the greatest product using rational rational numbers with a sum of 20

1 answer:

8 0

Hello,

Let's be x and y the 2 numbers

x+y=20==>y=20-x
P(x)=x*y=x*(20-x)=20x-x²
Max(P(x))==>P'(x)=0= 20-2x==>2x=20==>x=10

A product is maximum is the 2 numbers are equals;

Numbers are 10 and 10 and product=100

You might be interested in

How many ways can you arange the letters in the word cube

Margarita [4]

You could four times because there are four letters in the word cube, so there are only four possible ways you could spell it.

Hope this helps:)
Plz rate branliest

3 0

3 years ago

11 identical pairs of Air Jordan cost $660.What is the cost of one pair?

Crank

Answer:

$60

Step-by-step explanation:

11 identical pairs of Air Jordan cost $660.

To find the cost of one pair, you have simply to divide the total amount paid by the total number of pairs.

Total amount paid = $660

Total number of pairs = 11

The cost of one pair $=\$660 : 11=\$60$

6 0

4 years ago

A tree that is 5 feet tall is growing at a rate of 1 foot per year. A 6 foot tall tree is growing at a rate of 0.5 foot per year

vovangra [49]

Both trees would be the same in 2 years at 7 feet.

Hope this helps.

8 0

4 years ago

Read 2 more answers

Select one of the factors of the quadratic expression.

masha68 [24]

Answer:

A) (x + 2)

Step-by-step explanation:

x^2 + 5x + 6

=(x +3)(x +2)

so (x+3) and (x+2) are the factors

7 0

3 years ago

Given that 5x:9=7:3 calculate the value of x. give your answer in its simplest form.

Hitman42 [59]

$\huge\underline{\red{A}\green{n}\blue{s}\purple{w}\pink{e}\orange{r} →}$

Step-by-step explanation:

<h3>Given →</h3>

5x:9 = 7:3

→ 5x/9 = 7/3

→ x = (7 × 9)/(3 × 5)

→ x = 21/5

<h3>Hope it helps you!!</h3>

8 0

2 years ago