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scZoUnD [109]
3 years ago
7

on a recent hike through riverbend park antoinette traveled 2/3 mile in 1/3 hour . Which unit rate describes antoinettes speed i

n miles per hour
Mathematics
1 answer:
My name is Ann [436]3 years ago
5 0

Answer:

Her speed is of 2 miles per hour.

Step-by-step explanation:

Velocity:

The velocity is given by the following formula:

v = \frac{d}{t}

In which v is the velocity, d is the distance and t is the time.

2/3 mile in 1/3 hour .

This means that d = \frac{2}{3}, t = \frac{1}{3}

Which unit rate describes antoinettes speed in miles per hour?

This is v. So

v = \frac{d}{t} = \frac{\frac{2}{3}}{\frac{1}{3}} = \frac{2}{3}*\frac{3}{1} = 2

Her speed is of 2 miles per hour.

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If a quadrilateral has interior angles of 90 degrees, 73 degrees, and 111 degrees. What is the measurement of the 4th angle
Mariulka [41]
All quadrilaterals have a total of 360 degrees so...

90+76=163

163+111=274

360-274=86

The measurement for the 4th angle would be 86 degrees
4 0
3 years ago
Supplementary angles formed by parallel lines and transversals that are both outside the parallel line and on the opposite side
Mashcka [7]

Answer:

Alternate exterior angles

Step-by-step explanation:

Alternate exterior angles are angles that are formed outside two parallel lines that cuts through a transversal line. these angles are formed on the opposite side of the transversal line ( alternate side).

Also Alternate exterior angles are congruent in nature are they are not adjacent angles as well

4 0
3 years ago
What is the solution to the system of linear equations below? 2/5x−y=6 −2x+5y=−30 Select one: A. (-13, 14) B. (-5, -8) C. no sol
tester [92]

Answer:

D. Infinitely many solutions

Step-by-step explanation:

-\frac{2}{5}x-y=6      |  -2x+5y=-30

1.Since neither equation contains an isolated. However, we can isolate -y in the first equation by adding \frac{2}{5}x to both sides.

Like this: \frac{2}{5}x-\frac{2}{5}x-y=6-\frac{2}{5}x

ending up with y=6-\frac{2}{5}x

2.Now, we can change y to a positive y. By doing so, we divide -y by the entire equation.

Like this \frac{-y=6-\frac{2}{5}x }{-y}

Ending with y=-6+\frac{2}{5}x

3.Now, we can plug the expression -6+\frac{2}{5}x into the second equation as a substitute for y, and solve for x. Then, we can use x to calculate y.

Like this -2x+5(-6+\frac{2}{5}x)=-30\\ -2x-30+2x=-30\\

4. Since -2x+2x would cancel out and leave -30=-30. This is true because we know -30 equals -30 with no variable in sight.

3 0
3 years ago
Item 12
GalinKa [24]

Answer:

The maximum height of the water balloon occurs at x = 0.

The water balloon is in the air for 2 s.

The maximum height of the water balloon is 64 ft.

Step-by-step explanation:

The water balloon rises above 64 ft before falling toward the ground.

I'm confused since it does start at a height of 64, but I think it meant that it started lower then went up, so I would say that wouldn't be true.

The water balloon hits the ground in 64 s

it hits the ground at 2 seconds

4 0
2 years ago
Read 2 more answers
Mary had a 3-inch piece of ribbon. She cut it in half. How long were the new pieces?
Andreyy89
3 divided by 2 is 1.5
each piece is 1.5 
6 0
3 years ago
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