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Doss [256]
3 years ago
13

There is a proportional relationship between your distance from a thunderstorm and the time from when you see the lightning and

hear thunder, if there are 9 seconds between lightning and thunder ,the storm is about 3 kilometers away if you double the amount of time between the lightning and thunder, do you think the distance in kilometers also double?justify your reasoning.
Mathematics
1 answer:
eimsori [14]3 years ago
3 0

Answer:

Yes.

Step-by-step explanation:

The relation would be 3 = k*9  as there is a direct proportional relationship.

So k = 3/9 = 1/3  and we can write the relation as d = 1/3 t   where d=distance and t = time.

So if we double the time t we have:-

d = 1/3 * 18

= 6 kilometers.

So the distance is doubled.

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Please help with this question.
Y_Kistochka [10]

Answer:

7/1000

Step-by-step explanation:

1 m = 1000 mm

Therefore,

Scale factor = 7/1000

7 0
3 years ago
Please help me quick
meriva

Answer:

Step-by-step explanation:

the answer is b

3 0
3 years ago
The perimeter of a triangle is 110 inches. The ratio of the side measures are 6:7:9. Find the measure of each side.
erastova [34]

The ratio of the side measures are 6:7:9.

Let's assume length of three sides of the triangle is 6x, 7x and 9x.

Given,perimeter of a triangle is 110 inches.. Perimeter is the sum of all three sides of the triangle. So, we can set up an equation as follows:

6x+7x+9x= 110

22x =110

\frac{22x}{22} =\frac{110}{22} Dividing each sides by 22.

x=5.

Now we can plug in x=5 in all the expressions of sides.

So, 6x=6(5)=30,

7x=7(5)=35

9x=9(5)=45.

So, the sides of the triangle are 30 inches, 35 inches and 45 inches.

4 0
3 years ago
Leon’s older brother is 4 3/4 feet tall . Leon is 1/3 foot shorter than his brother . How tall is Leon ?
Vika [28.1K]

Answer:

4 5/12

Step-by-step explanation:

4 3/4 = 19/4

19/4 = 57/12

1/3 = 4/12

57/12 - 4/12 = 53/12 = 4 5/12

5 0
3 years ago
Subtract. Write the difference in simplest form.
goblinko [34]

Answer:

Step-by-step explanation:

(8n - 5) - (-3n+ 2) = 8n - 5 + 3n - 2 { take - inside the parenthesis }

= 11n - 7    { add like terms- 8n + 3n = 11n and -5 -2 = -7}

5 0
3 years ago
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