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3 years ago

A bike sickle us wrote a distance of 3 miles in 18 minutes.what was the average rate of the bicycle is in miles per hour.

Mathematics

2 answers:

Stells [14]3 years ago

8 0

Answer:

Step-by-st7

ep explanation:

NISA [10]3 years ago

4 0

18 minutes is 3/10 hours. 3 miles/(3/10 hrs) = the rate of 10 miles per hour.

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Determine the value of angle ECB Please help me out!

ZanzabumX [31]

Answer: ∠ECB = 60°

Step-by-step explanation:

First, find the value of x by adding them up.

x + 3x + 2x = 6x

Since we know that all of the angles create a 180° angle, we can set up a proportion.

6x = 180°

To find the value of x, divide both sides by 6.

6x ÷ 6 = x

180 ÷ 6 = 30

So now the proportion is x = 30.

Now that we now x = 30, we can plug in 30 to the angle measures.

∠DCA = 30°

∠DCE = 90°

∠ECB = 60°

So angle ECB is 60°.

hope this helps!

8 0

3 years ago

6d2+8d-5=0 <img src="https://tex.z-dn.net/?f=6d%20%20%7B%7D%5E%7B2%7D%20%20%20%2B%208d%20-%205%20%3D%200%20%5C%5C%20" id="Tex

FromTheMoon [43]

The answer is d= 1/4
hope this helps

5 0

3 years ago

Sara earned AED 261 last week. If she worked 18 hours and earned the same amount each hour, how much was she paid per hour?

Dmitrij [34]

Answer:

She was paid Aed 14.5 per hour.

8 0

3 years ago

#6 You want to find out what type of pet is most commonly adopted from the shelter. Over the course of a month, you randomly sur

DochEvi [55]

Answer:

we predict 2,587 persons will adopt dogs

Step-by-step explanation:

out of 40 persons 23 adopt dogs

Then

out of 40×25 persons 23×25 adopt dogs

Then

out of 1000 persons 575 adopt dogs

Then

out of 1000×4.5persons 575×4.5 adopt dogs

Then

out of 4,500 persons 2,587.5 adopt dogs

Method 2 :

Let x Ben the number of persons we predict they will adopt dogs:

Here we have a proportional relationship:

Then

$\frac{4500}{40} =\frac{x}{23}$

$\Longleftrightarrow x = \frac{4500\times 23}{40} =2587.5$

3 0

3 years ago

Tiffany spent 3/5 of her money to buy begonias and 1/2 of the remaining money to buy peas. What part of her money did she spend

Rufina [12.5K]

Answer:

Tiffany spent 1/5 of her money on peas.

Step-by-step explanation:

5/5 is the whole.

She spent 3/5 so now you only have 2/5 left.

1/2 of 2/5 is 1/5.

So she spent 1/5 of her money on peas.

6 0

3 years ago