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nataly862011 [7]
2 years ago
6

Twice a number increased by 7 is 13. Find the number.​

Mathematics
1 answer:
Alborosie2 years ago
5 0

Answer:

6

Step-by-step explanation:

13-7=6

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Molodets [167]

Answer:

12/19?

11/19?

Step-by-step explanation:

6 0
3 years ago
Please help!!! 30 minutes left
NeX [460]

Answer:

Option "D" is correct.

Step-by-step explanation:

\frac{a^{3}b^{-2} }{ab^{-4} }

To eliminate negatives

They are interchanged thus it gives us option D.

7 0
2 years ago
Find the slope of the line.
ladessa [460]
Lets take any two points on the line . I took (-2,-2) and (0,-3)
slope is rise/run = -3-(-2)/ 0-(-2) = -3+2/2= -1/2
answer is -1/2
4 0
3 years ago
Train A and Train B start off at the same point and are traveling in the same direction. It takes Train A 30 minutes to get to S
kaheart [24]

Answer:

No difference

Step-by-step explanation:

The given parameters are;

The point Train A starts off = The point Train B starts off

The direction of travel of Train A = The direction of travel of Train B

The time it takes Train A to get to Station X, t₁ = 30 minutes = 0.5 hour

The speed of Train A, v₁ = 100 miles per hour

The time it takes Train B to get to Station Y, t₂ = 100 minutes = (5/3) hours

The speed of Train B, v₂ = 30 miles per hour

The distance from the starting point to Station X, d₁, is given as follows;

v₁ = d₁/t₁

∴ d₁ = v₁ × t₁

By substituting the known values, we have;

d₁ = 100 mph × 0.5 h = 50 miles

The distance from the starting point to Station Y, d₂, is given as follows;

v₂ = d₂/t₂

∴ d₂ = v₂ × t₂

By substituting the known values, we have;

d₂ = 30 mph × (5/3) h = 50 miles

Therefore;

The difference in the distances to Station X and Station Y = d₁ - d₂

d₁ - d₂ = 50 miles - 50 miles = 0

∴ The difference in the distances to Station X and Station Y = 0 (No difference).

6 0
3 years ago
A golf ball is hit with an initial velocity of 64 Ft/s. The function h(t) = -16t^2 + 64t models the height h (in feet) of the go
Arlecino [84]

Answer:

  • Yes, the ball reaches the height of 64 ft

Step-by-step explanation:

<u>Given function</u>

  • h(t) = -16t^2 + 64t

<u>The maximum value is at vertex and the x-value of the vertex is:</u>

  • t = -64/2(-16) = 2

<u>Finding the maximum height the ball can reach:</u>

  • h(2) = -16(2²) + 64(2) = -64 + 128 = 64

The answer is yes

7 0
2 years ago
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