Ask question

Ask question

All categories

3 years ago

13

Mary jogged 2 7/8 miles per hour for 2 2/3 hours. During 1/3 of her jogging time, she was jogging in the rain. How many miles d

id she jog in the rain?

1 answer:

alexira [117]3 years ago

4 0

Answer:

C

Step-by-step explanation:

QRRT

You might be interested in

Lin runs 5 laps around a track in 6 minutes.

Paladinen [302]

Answer:

25.2

Step-by-step explanation:

6/5 is 1.2, so it takes 1.2 minutes to run one lap.

This means 21 x 1.2 = the minutes it takes to run 21 laps around the track.

Therefore it takes 25.2 minutes to run around the track 21 times.

3 0

3 years ago

Find the solutions for a triangle with a = 16, c =12, and B = 63º.

maks197457 [2]

Answer:

b. A = 71.6°; C = 45.40°; b =15.0

Step-by-step explanation:

The missing values can be found with the help of the Law of Cosine and properties of triangles:

Side b (Law of Cosine)

$b = \sqrt{a^{2}+c^{2}-2\cdot a \cdot c \cdot \cos B}$

$b = \sqrt{16^{2}+12^{2}-2\cdot (16)\cdot (12) \cdot \cos 63^{\circ}}$

$b \approx 15.022$

Angle A (Law of Cosine)

$\cos A = -\frac{a^{2} - b^{2}-c^{2}}{2\cdot b \cdot c}$

$\cos A = - \frac{16^{2}-15.022^{2}-12^{2}}{2\cdot (15.022)\cdot (12)}$

$\cos A = 0.315$

$A= \cos^{-1} 0.315$

$A \approx 71.639^{\circ}$

Angle C (Sum of internal angles in triangles)

$C = 180^{\circ} - 63^{\circ} - 71.639^{\circ}$

$C = 45.361^{\circ}$

Hence, the right answer is B.

6 0

3 years ago

A nurse gave an 8 year old child a dose of 6 mL of medicine. What would be the adult equivalent of this dosage

aleksley [76]

Ok read first heheheh where

3 0

2 years ago

Square inch for 30 stones

Anna71 [15]

1 stone = 20 square inches

1 stone * 30 = 20 square inches * 30

30 stones = 600 square inches

8 0

3 years ago

How to find each angle indicated

Natalija [7]

The answer is 80 because all triangles equal 180

8 0

3 years ago

Read 2 more answers