¿Los números decimales periódicos (puros o mixtos) son naturales? ¿Son enteros?

A recipe for sparkling grape juice calls for 1/2 quarts of sparkling water and 3/4 quarts of grape juice how much sparkling wate

dimaraw [331]

Answer: 6

Step-by-step explanation:

3/4 x 12 =36/4

12 x 1/2=6

6 0

2 years ago

Oranges cost 85 cents each.

Naily [24]

Answer:

11

Step-by-step explanation: 100 cents- $1

85 x 85 x 85 x 85 x 85 x 85 x 85 x 85 x 85 x 85 x 85 = 935

935 or 9.35 dollars

8 0

2 years ago

Read 2 more answers

Find an equation of the sphere with center (−2, 3, 7) and radius 7.What is the intersection of this sphere with the yz-plane?

masya89 [10]

Answer:

The equation of the sphere with center (-2, 3, 7) and radius 7 is $(x+2)^{2}+(y-3)^{2}+(z-7)^{2} = 49$ .

The intersection of the sphere with the yz-plane is $(y-3)^{2}+(z-7)^{2} = 49$ .

Step-by-step explanation:

We know that any sphere can be represented by the following equation:

$(x-h)^{2}+(y-k)^{2}+(z-s)^{2} = r^{2}$

Where:

$h$ , $k$ , $s$ - Coordinates of the center of the sphere, dimensionless.

$r$ - Radius of the sphere, dimensionless.

If $(h,k, s) = (-2,3,7)$ and $r = 7$ , we obtain this expression:

$(x+2)^{2}+(y-3)^{2}+(z-7)^{2} = 49$

The intersection of the sphere with the yz-plane observe the following conditions:

$x = 0$ , $y \in \mathbb {R}$ , $z\in \mathbb{R}$

Hence, the expression above can be reduced into this:

$(y-3)^{2}+(z-7)^{2} = 49$

6 0

3 years ago

I need help to this question:Country Carpets charges $22 per square yard for carpeting, and an additional installation fee of $1

Iteru [2.4K]

Answer:

The total cost charged by the two companies will be the same for 10 square yards of carpeting .

Step-by-step explanation:

Let us assume that the number of square yards for carpeting used be x.

Let us assume that the total cost of the charged by the companies be y.

As given

Country Carpets charges $22 per square yard for carpeting, and an additional installation fee of $100.

Than the equation becomes

y = 22x + 100

As given

City Carpets charges $25 per square yard for the same carpeting, and an additional installation fee of $70.

Than the equation becomes

y = 25x + 70

Than the two equations are

y = 22x + 100 and y = 25x + 70

Than compare the two equations are

22x + 100 = 25x + 70

25x - 22x = 100 - 70

3x = 30

$x = \frac{30}{3}$

x = 10 square yards .

Therefore the total cost charged by the two companies will be the same for 10 square yards of carpeting .

3 0

3 years ago

When rolling a pair of dice, what is the probability (as a percent) that each die will land on an even number?

ASHA 777 [7]

Answer:

The probability of getting an even number at the first die is 1/2 (as the probability of even = the probability of odd = 1/2); 2. The probability of getting a total of 8 is 5/6^2, as there are 5 different favorable scenarios: (2,6), (6,2), (3,5), (5,3) and (4,4);

Step-by-step explanation:

7 0

3 years ago