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4 years ago

I need help with this unsolvable problem... ( For me at least )

Mathematics

1 answer:

Amiraneli [1.4K]4 years ago

8 0

Both speeds (quarter horse's and snail's) are already in mph. This means that to be able to determine how many times is the quarter horse faster than a snail, we just have to divide the quarter horse's speed by the speed of the snail.
r = 53.16 / 0.02 = 2658
Therefore, the quarter horse is 2658 times faster than the snail.

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What ratios are equivalent to 8:20?

AVprozaik [17]

Answer:

615 and 25 are equivalent to 820.

Step-by-step explanation:

(it's a searchable question on Google)

5 0

4 years ago

Read 2 more answers

Two skateboarders, Ron and Bob, are traveling in opposite directions.Ton travels at 8 feet per second and bob travels at 10 feet

omeli [17]

Time taken before they are 2640 feet is 146.67 seconds

Solution:

The distance is given by formula:

$distance = speed \times time$

Ton travels at 8 feet per second

Let us assume, time taken = t

speed = 8 feet per second

Then, distance is given as:

Distance covered by Ton = 8t

Bob travels at 10 feet per second

Then, distance is given as:

Distance covered by Bob = 10t

How long will it take before they are 2640 feet

Which means,

Distance covered by Ton + Distance covered by Bob = 2640

$8t + 10t = 2640\\\\18t = 2640\\\\Divide\ both\ sides\ of\ equation\ by\ 18\\\\t = 146.67$

Thus time taken before they are 2640 feet is 146.67 seconds

<h3>Method 2:</h3>

Since trains are moving in opposite directions, their speeds must be added

speed = 8 + 10 = 18 feet per second

Given distance = 2640 feet

Therefore, time taken is:

$time = \frac{distance}{speed}\\\\time = \frac{2640}{18} = 146.67 \text{ second }$

Thus time taken before they are 2640 feet is 146.67 seconds

4 0

4 years ago

Identify the measure of arc PQ

Fudgin [204]

C, 62
Line segment SQ=180, because it is a straight line
90+28=118
180-118=62
hope this helps:)

7 0

4 years ago

If you have a total of $75 with a 20% coupon how much money would you save

soldi70 [24.7K]

$75.00 x .20 = $15.00

8 0

4 years ago

Write a function in any form that would match the graph shown below.

omeli [17]

Answer:

y + 16 = -1(x + 3)²

Step-by-step explanation:

Looking at the graph, parabola vertex opens upwards with x intercepts as -5 and -1.

Thus, the line of symmetry will be;

x = (-5 + (-1))/2 = -3

Looking at the graph we can see that the vertex when traced to the x - coordinate will be 3 which is same with what we got.

Now, the general form of the equation will be;

y - h = a(x - k)²

where (k,h) is the vertex coordinate

Thus, k = -3

So;

y - h = a(x - (-3))²

>> y - h = a(x² + 6x + 9) =

>> y = ax² + 6ax + 9a + h

When, x = 0

y = 9a + h

From the graph, we can see that the y-intercept is y = -25

Thus;

9a + h = -25

From the graph, h which is the y-coordinate of the vertex = -16

Thus;

9a - 16 = - 25

9a = -25 + 16

9a = -9

a = -9/9

a = -1

Thus, the equation is;

y - (-16) = -1(x - (-3))²

>> y + 16 = -1(x + 3)²

6 0

3 years ago