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strojnjashka [21]
3 years ago
13

Helllllllllllllllllllllllllllllllppppppp

Mathematics
1 answer:
Tanya [424]3 years ago
8 0

Answer:

1. x = -3

2.b = 29

3.r = 16

4.b = 7

5.t = 26

6.m = 19

7.y = 16

8.h = 50

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Stanley runs, swims, and bikes every day. During these workouts, he runs at 9 mph, bikes at 16 mph, and swims at 2.5 mph. Yester
Maurinko [17]

The time spent for each activity can be found writing an equation based on

the known parameters.

  • The duration of the time Stanley spent running is <u>1.5 hours</u>
  • The duration of the time Stanley spent swimming is <u>1 hour</u>
  • The duration of the time Stanley spent Biking is <u>3 hours</u>

  • The distance Stanley cover while biking is <u>48 miles</u>

<u />

Reasons:

The running speed = 9 mph

The biking speed = 16 mph

Swimming speed = 2.5 mph

The time spent running = 0.5 hour + Time spent swimming

Biking time = 2 × Running time

The total distance covered = 64 miles

Required:

Time spent running, swimming, and biking

Solution:

Let <em>t</em> represent the time Stanley spent swimming, we have;

(t + 0.5)·9 + 2.5·t + 2×(t + 0.5)×16 = 64

43.5·t + 20.5 = 64

43.5·t  = 64 - 20.5 = 43.5

t = \dfrac{43.5}{43.5} = 1

  • The time Stanley spent swimming, t = <u>1 hour</u>

The time Stanley spent running = 0.5 + t

Therefore;

The time spent running = 0.5 hour + 1 hour = 1.5 hour

  • Time spent running = <u>1.5 hours</u>

Time spent biking = 2 × Running time

Therefore;

  • Time spent biking = 2 × 1.5 hours = <u>3 hours</u>

  • The distance Stanley cover while biking, d = 3 × 16 mph = <u>48 miles</u>

<u />

Learn more here:

brainly.com/question/23206880

7 0
3 years ago
I need help please :-)
ra1l [238]

Answer:

  A. 1

  B. slope: 1/2 mile/minute; the slope represents the speed of the car

  C. correlation

Step-by-step explanation:

A. The points in the table lie on a straight line, so the correlation coefficient is exactly 1.

__

B. The ratio of distance to time is speed. That ratio for this data is 10 miles/20 minutes = 1/2 mile/minute. This is the slope of the graph.

__

C. Passage of time does not cause the car to go any particular distance, nor does the car's traveling cause time to pass. The best that can be said is that the car's distance traveled is strongly correlated with the time it takes. (The reason the car goes some distance is likely due to a cause not mentioned in the problem statement, for example, it was switched on and the motor started.)

8 0
3 years ago
Which direction is a clockwise rotation?
Slav-nsk [51]

Answer:right

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
POSSIBLE POINTS
k0ka [10]

Answer:

<em>Bot ratios are equivalent?  YES</em>

Step-by-step explanation:

The Semi Scooper Sundae has 10 scoops of ice cream and 6 cherries. The ratio of cherries to scoops of ice cream is:

\frac{6}{10}

Simplifying:

\frac{6}{10}=\frac{3}{5}

Ratio= 3:5

The Super Scooper Sundae has 15 scoops of ice cream and 9 cherries. The ratio of cherries to scoops of ice cream is:

\frac{9}{15}

Simplifying:

Ratio= 3:5

Bot ratios are equivalent?  YES

4 0
3 years ago
So is 80 kilometers bigger than 1000 meters
Sergeu [11.5K]
80 kilometers is equal to 80,000 meters. This is greater than 1000 meters.
3 0
3 years ago
Read 2 more answers
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