MATHEMATICS HIGH SCHOOL

Bob travels from Inglewood to Anytown, a distance of 20kilometres, he walks 800 metres and bicylces the rest of the way. what percentage does he travel by bicylce?

Answers

Answer 1
Answer:

For this case we have the following conversion:

Therefore, for 20 kilometers we have:

Then, we have the following relationship:

Where,

x: distance Bob travels by bicycle

Clearing x we have:

Then, the percentage that Bob travels by bicycle is:

((19200)/(20000)) * (100) = 96%

Answer:

The percentage that Bob travels in bicycle is 96%.

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Four times the difference of 17 and a number is 84. Which equation below can be used to find the unknown number?
Find the surface area. 3in. 2in. 6in. 2in. 4in.​
12 x Q greater than 12 less than 24
Tomas bought a book that cost $18. it was on sale for 84% of its original price. how much did tomas pay

What is the equation in point−slope form of the line passing through (−2, −5) and (2, 3)?(A. y+2 = -2(x+5); B. y-2 = 2(x-3); C. y-3 = 2(x-2); D. y+3 = -2(x+2))

Answers

Hi,

m = (y-y₀)/(x-x₀)
m = (-5-3)/(-2-2)
m = -8/-4
m = 2

For point (2,3) ⇒ x₀ = 2 and y₀ = 3

y-y₀ = m(x-x₀)
y-3 = 2(x-2)

For point (-2,-5) ⇒ x = -2 and y = -5

-5-3 = 2(-2-2)
-8 = 2(-4)
-8 = -8 ⇒ True

Answer: 

C. The equation is y-3 = 2(x-2)

An photo studio is going to display a portrait in their lobby. The portrait is being reproduced from a photo with dimensions 6 inches by 3 inches. If the dimensions of the portrait in the lobby are 20 times the dimensions of the original photo, determine the area of the portrait in square feet.a.
7,200 ft2

b.
50 ft

c.
300 ft

d.
200 ft

Answers

Answer:

300ft

Step-by-step explanation:

Andrea bought tacos from a food truck and left a 25% tip 2.00

Answers

What you have to do is multiply 2.00 by 0.25 and you’ll get .50. she left a 50 cent tip

Ian walks 4 1/2 miles everyday. How many miles does Ian walk in 4 1/2 days?

Answers

mutiply 4 1/2 by 4 1/2 and you get 20.25 and 25/100 which can be sipmlified to 1/4 so 20.25 is 20 1/4

Sketch one cycle of the sine curve. y = -3 sin 4theta

Answers

Answer:

Step-by-step explanation:

We have been given a function:

y=-3sin4\theta

We will compare it with the genral equation which is:

y=asin bx+c

Where, a is amplitude and period of function is (2\pi)/(b)

In given equation a is -3 and b is 4

So, period of the given equation is:

(2\pi)/(4)=(\pi)/(2)

Yo can look at the graph in the attachment.

The a is the amplitude and the period of the function is (2\pi )/(b)

We have been given a function

y = -3 sin 4 \theta

What is the general form of sin wave?

y=asinbx+c

We will compare it with the general equation which is

Where a is amplitude and period of the function is (2\pi )/(b)

In the given equation a is -3 and b is 4

So, the period of the given equation is:

(2\pi )/(4) =(\pi )/(2)

You can look at the graph.

To learn more about the sin wave visit:

brainly.com/question/25699025

#SPJ2

A skier has decided that on each trip down a slope, she will do 3 more jumps than before. On her first trip she did 5 jumps. Derive the sigma notation that shows how many total jumps she attempts from her third trip down the hill through her tenth trip. Then solve for the number of total jumps from her third to tenth trips.

Answers

Since we are already given the amount of jumps from the first trial, and how much it should be increased by on each succeeding trial, we can already solve for the amount of jumps from the first through tenth trials. Starting from 5 and adding 3 each time, we get: 5 8 (11) 14 17 20 23 26 29 32, with 11 being the third trial.

Having been provided 2 different sigma notations, which I assume are choices to the question, we can substitute the initial value to see if it does match the result of the 3rd trial which we obtained by manual adding.

Let us try it below:

Sigma notation 1:

  10
   Σ (2i + 3)
i = 3

@ i = 3

2(3) + 3
12

The first sigma notation does not have the same result, so we move on to the next.

  10
   Σ (3i + 2)
i = 3

When i = 3; 3(3) + 2 = 11. (OK)

Since the 3rd trial is a match, we test it with the other values for the 4th through 10th trials.

When i = 4; 3(4) + 2 = 14. (OK)
When i = 5; 3(5) + 2 = 17. (OK)
When i = 6; 3(6) + 2 = 20. (OK)
When i = 7; 3(7) + 2 = 23. (OK)
When i = 8; 3(8) + 2 = 26. (OK)
When i = 9; 3(9) + 2 = 29. (OK)
When i = 10; 3(10) + 2 = 32. (OK)

Adding the results from her 3rd through 10th trials: 11 + 14 + 17 + 20 + 23 + 26 + 29 + 32 = 172.

Therefore, the total jumps she had made from her third to tenth trips is 172.

Answer:d

Step-by-step explanation:test
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