2 years ago

By what percent will the product of two numbers decrease if one of them is decreased by 20% and the other is decreased by 50%?

Mathematics

1 answer:

Furkat [3]2 years ago

8 0

Answer:

(x - .20)(x - .50)

$x^{2}$ = (.20)(.50)

$x^{2}$ = 0.1

x = $\sqrt{ .1$

x = .32

the product of two numbers decrease by 32%

You might be interested in

Which of the following is a trinomial with a constant term?

Furkat [3]

Answer: D. x+2y+10

Trinomial refers to the fact that the polynomial has 3 pieces (x, 2y, and 10)

Constant term means there is a term with no variable (a number with no letters attached to it: In this example, that number is 10)

6 0

2 years ago

. Una persona desea realizar una pintura para su próxima exposición en donde esta tenga tres colores fluorescentes y dos colores

ycow [4]

Answer: B. 350.

Step-by-step explanation:

Given: Total number of fluorescent colors = 7

Total number of pastel colors = 5

Since , he want three fluorescent colors and two pastel colors.

Number of ways to select r things out of n things = $^nC_r=\dfrac{n!}{r!(n-r)!}$

Number of ways to choose colors = $^7C_3\times\ ^5C_2$

$=\dfrac{7!}{3!4!}\times\dfrac{5!}{2!3!}\\\\=\dfrac{7\times6\times5\times4!}{3\times2\times1\times4!}\times\dfrac{5\times4\times3!}{2\times3!}\\\\=350$

Hence, the correct option is B. 350.

3 0

2 years ago

the diameter of a gigantic Ferris wheel is 185 meters. if a man rides a ferris wheel for one revolution find how far he travels

lidiya [134]

Answer:

Step-by-step explanation:

You need to find out the circumference of the Ferris wheel

C=d*3.14=185*3.14=580.90 m

6 0

2 years ago

Are integers irrational

AVprozaik [17]

Well, some integers can be irrational, but not all! :)

3 0

2 years ago

Read 2 more answers

I don't quite understand this problem: 6+√44/2 (or 6 plus the square root of 44 over 2). I know the answer is 3+√11 (3 plus the

Sonja [21]

Does 2 is included in the square root?
sq.rt (44/2) ? or (sq.rt 44)/2

5 0

2 years ago