qual o resultado da equação 12÷(6+2-(3+3))​

Answer:

120 because he left the tip and you have to divide the tip by the total cost

Step-by-step explanation:

Answer:

No. of boys = 15

Step-by-step explanation:

Given that,

The ratio of boys to student is 3:7.

Number of girls in the school = 20

We need to find the number of boys in the school.

Let there are 3x boys and 7x number of students.

No. of girls = Total students - no. of boys

= 7x-3x

= 4x

ATQ,

4x = 20

x = 5

No. of boys = 3x

= 3(5)

= 15

Hence, there are 15 boys in the school.

Answer:

1: (4,1) x=4 y=1

2: (1,10) x=1 y=10

3: (-25/4,5) x= -25/4 y=5

Step-by-step explanation:

It would be a lot to explain all three so if you really need it just ask

Answer: 11

Step-by-step explanation: m<2 is equal to 42. This also means that 3x+9 is equal to 42.

3x+9=42, solve for x. Subtract 9 from both sides. 3x=33, divide by three to get X isolated. X= 11

Answer:

6 ways

Step-by-step explanation:

Given that:

Number of options, n = 4

Combo, r = 2

Using Combination :

nCr = n! ÷ (n-r)! r!

4C2 = 4! ÷ (4-2)!2!

4C2 = 4! ÷ 2!2!

4C2 = (4 * 3) / (2 * 1)

4C2 = 12 / 2

4C2 = 6

Answer:

x = (7/3,0)

y = (0,-14)

Step-by-step explanation:

make an equation

y = 6x - 14

solve

Answer:

34,320 are cars

Step-by-step explanation:

65% of 52,800 is 34,320

Answer:

Step-by-step explanation:

Since the tax is 17¢, then you have to subtract that from 14.58

14.58-.17=14.41

14.41/6

$2.40

Answer:

12$

Step-by-step explanation:

10% of 10 is 1$ 20% of 10 is 2$ so the answer is 12$

Answer:

y = -2x-5

Step-by-step explanation:

So to calculate the slope the equation is y1-y2/x1-x2. We substitute in two points, let's use (-3,1) as x1 and y1, and (1,-7) as x2 and y2. Put those points in the equation and you get -7-1/1-(-3), which is -2. Now you have y=-2x+b

To get b plug in a pair of points to the equations, say (1,-7). -7=-2(1)+b, solve that and you get b=-5.

So y=-2x-5.

Answer:

20 trail markers

Step-by-step explanation: I would appreciate a brainiiest

There are four 1/4 to 1 mile (1/4 x4 = 1)

Multiply 4 by total miles: 4 x 5 miles = 20 total markers.

Answer:

1, 2, 4, 8, 16, 32, 64

Step-by-step explanation:

There are 6 possible arrays for 64.

An array is a set of items, images, or numbers arranged in rows and columns. Arrays are practical illustrations of multiplication ideas.

The given number is,

64.

To find the array for the number 64,

Find factors of 64.

Factors

= 64, 32, 16, 8, 4, 2, 1

The number of factors = 6

Hence, total 6 possible arrays for 64.

To know more about Array on:

https://brainly.com/question/19570024

#SPJ2

Answer:

[tex]y= 30-0.85x[/tex]

Step-by-step explanation:

Given data

Height of building= 30ft

We are told that after the ball landed it bounced 85% the height

let the new height be y

So the expression for the new height for x number of bounces is

[tex]y= 30-0.85x[/tex]

Answer:

−3x+ −3/5y

Step-by-step explanation:

Answer:

well, the first thing you need to do is find 4 percent, which is 5 times as much as 4% of 100, which is 4, 4x5 is 20 so the range of values is 480-520

Step-by-step explanation:

that kinda was ur step by step equation.

Answer:

[tex]\boxed {\boxed {\sf 30 \ Joules}}[/tex]

Step-by-step explanation:

Kinetic energy can be found using the following formula:

[tex]KE=\frac{1}{2}mv^2[/tex]

Where m is the mass and v is the velocity.

The robot has a mass of 60 kilograms and a velocity of 1 meter per second.

[tex]m= 60 \ kg \\v= 1 \ m/s[/tex]

Substitute the values into the formula.

[tex]KE=\frac{1}{2} (60 \ kg) (1 \ m/s)^2[/tex]

Solve the exponent first.

[tex]KE= \frac{1}{2} ( 60 \ kg )(1 m^2/s^2)[/tex]

Multiply the numbers in parentheses.

[tex]KE=\frac{1}{2} ( 60 \ kg*m^2/s^2)[/tex]

Multiply by 1/2 or divide by 2.

[tex]KE= 30 \ kg*m^2/s^2[/tex]

[tex]KE= 30 \ J[/tex]

The robot's kinetic energy is 30 Joules

Complete question :

A cooler contains 4 L of water. The cooler has marks on it at every 0.2 L. Water bottles are filled with water from the cooler, and each bottle holds approximately 4/9L. After 4 water bottles are filled, between which two marks is the water level in the cooler? Show your work.

Answer:

2.2 - 2.4 Litre

Step-by-step explanation:

Capacity of cooler = 4L

Marking on cooler = every 0.2L

Capacity of bottle = 4/9 L

Number of bottles filled = 4

Total volume filled = (4/9) * 4 = 16/9 L = 1.78L

Volume of water left in tank :

(4 - 1.78)Litre

= 2.22 litres

Since, the tank is marked at 0.2 L interval ; the water level will be between 2.20 to 2.40 litres

Answer:

She has completed 15% of her deliveries.

Answer:

19cm

Step-by-step explanation:

7+4=11

a²+b²=c²

7²+4²=c²

c²=49+16=65

√8+7+4=19cm

Answer:

The answer would more than likely to be 4..

because u divide 5 on both sides and it will give you x=4

Step-by-step explanation:

Answer:

Each side would be 3 units.

Step-by-step explanation:

If the perimeter of the circle is 12 units and there are 4 sides on a square and all of those sides need to be equal all you must do is divide the number of units by the number of sides to get your answer of 3 units.

Hope I could help! :)

Answer:

2x-1

Step-by-step explanation:

the answer is the second option. I just took the test

Answer:

Equation of the straight line passing through the point ( 1,2 ) and having the slope

 x - √3y -1+2√3 =0

Step-by-step explanation:

Step(i):-

Given that the point (1,2) and an angle = ∝ = 30°

The slope of the line

             m = tan 30°

             [tex]m = \frac{1}{\sqrt{3} } }[/tex]

Step(ii):-

Equation of the straight line passing through the point ( 1,2 ) and having the slope

 [tex]m = \frac{1}{\sqrt{3} } }[/tex]

           y - y₁ = m(x-x₁)

          y - 2 = [tex]\frac{1}{\sqrt{3} } }[/tex] ( x -1)

        √3(y-2) = (x-1)

⇒       √3y - 2√3 = x -1

           x - √3y -1+2√3 =0