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mrs_skeptik [129]
3 years ago
8

1) A train travels 25 miles in 1/5 of an hour whats the trains speed in miles per hour?

Mathematics
2 answers:
Ksenya-84 [330]3 years ago
8 0
It’s 3 step by step because follow me to get free point
Radda [10]3 years ago
4 0

Answer:

<em>Hope this helps! ↓</em>

Step-by-step explanation:

1.) 90 Km/h. Example: What is the speed of a cheetah that travels 112.0 meters in 4.0 seconds? ... Speed of the cheetah in miles per hour 28m 1 mile 3600 s 63 miles

2.) y=kx is the direct variation formula. Inserting the information and variables from this scenario we get h = kn.

12 = k*(10) First solve for 'k', the constant of proportionality by dividing by 10.

1.2 = k

Next write the equation using this k and the h & n.

h = 1.2*n

Now we want to find the height if we have 24 books so plug 24 in for n.

h = 1.2 * 24

h = 28.8 inches

3.) 10/3

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How much greater is 100 than - 100
SCORPION-xisa [38]

100 it's like the absolute value

6 0
3 years ago
How to solve this system of equation 3x + y= 17 and 4x + 2 y = 20
lana66690 [7]
<span>3x + y= 17        (a)
4x + 2 y = 20    (b)

Multiply (a) by 2:

6x + 2y = 34   (a)
4x + 2y = 20   (b)

make:   (a) - (b)

2x = 14 -----> x =7

-------------------------------

Replace the value of x = 7 in one of anterior equation:

</span>3x + y= 17  
3 x 7 + y = 17
21 + y = 17
y = 17 - 21
y = -4
4 0
3 years ago
WILL MARK BRAINIEST!! 50 POINTS.
galben [10]

Answer:

Part A: The two types of types of transformation are

1) Rotation of 11.3° about (1, 2)

2) By algebraic transformation

Part B:

Rotation by 11.3° and T(2 - y)×1/2 + x, 0)

Part C: The transformation that can be used to transform f(x) to g(x) is T(2 - y)×1/2 + x, 0)

Step-by-step explanation:

The coordinates through which the linear function f(x) passes = (1. 3) and (3, 13)

The coordinates through which the linear function g(x) passes = (1, 3) and (1, 13)

The equation for f(x) in slope and intercept form. y = m·x + c is given as follows;

The slope, m = (13 - 3)/(3 - 1) = 5

The equation in point and slope form is y - 3 = 5×(x -1)

y = 5·x - 5 + 3 = 5·x - 3

y = 5·x - 3

The equation for g(x) in slope and intercept form. y = m·x + c is given as follows;

The slope, m = (13 - 3)/(1 - 1) = ∞

∴ The equation in point and slope form is x = 1

Therefore, the two equations meet at the point (1, 2)

The transformation that can be used to transform f(x) to g(x) is T(2 - y)×1/2 + x, 0)

2) Another transformation that can be used is to rotate f(x) by the vertex angle as follows

Vertex angle is 90° - tan⁻¹(m) = 90° - tan⁻¹(5) ≈ 11.3°

Rotation of f(x) by 11.3° about (1, 2) gives g(x)

Hope this helped!

7 0
2 years ago
Read 2 more answers
A water rocket is projected vertically upward from the ground. Its a height(h) m above the ground after t seconds is given by h=
Morgarella [4.7K]

The rocket will reach the ground after 4 seconds

Step-by-step explanation:

  • Step 1: Find the time when the water rocket reaches the ground.

When the water rocket reaches the ground, the height, h will be zero.

⇒ h = 20 - 5(t - 2)²

⇒ 0 = 20 - 5(t - 2)²

⇒ 5 (t - 2)² = 20

⇒ (t - 2)² = 4

⇒ t - 2 = √4 = 2

∴ t = 2 + 2 = 4 seconds

5 0
3 years ago
An opera singer teaches singing classes to teens. She teaches 96 teens in all. One-third of her
STatiana [176]

Answer:

32

Step-by-step explanation:

1/3x96= 31.999

4 0
3 years ago
Read 2 more answers
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