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dimaraw [331]
3 years ago
5

Renaldo can rollerblade 9.7 miles per hour.Eliza can rollerblade 8.2 miles per hour.How much farther will Renaldo rollerblade in

0.75 hour?
Mathematics
1 answer:
arsen [322]3 years ago
7 0
Let's find how much they rollerblade in 0.75 hours.
Renaldo:
9.7×0.75
7.275
Eliza
8.2×0.75
6.15
7.275-6.15
1.125
So 1.125 more miles.
Also, you could find the hourly differences.
9.7-8.2
1.5
Then multiply it my 0.75
1.5×0.75
1.125 miles more.
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A line is parallel to y = 2x - 8 and
Angelina_Jolie [31]

Answer:

the line is y=2x+7

Step-by-step explanation:

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3 years ago
4. Suppose an investment of $s1.800 doubles in value every 7 years. How much is the investment worth after 42 years?
igor_vitrenko [27]

we are given

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so,

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A=P(2)^{\frac{t}{7} }

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A=1800(2)^{\frac{t}{7} }

now, we can plug t=42

A=1800(2)^{\frac{42}{7} }

A=115200.............Answer

6 0
3 years ago
If 5(x-6y) = 50y,what is the value of x in terms of y? PLS EXPLAIn
inysia [295]

Answer:

E.  16y

Step-by-step explanation:

Given equation:

5(x - 6y) = 50y

Expand the brackets using<u>
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⇒ 5 · x - 5 · 6y = 50y

⇒ 5x - 30y = 50y

Add 30y to both sides:

⇒ 5x - 30y + 30y = 50y + 30y

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Divide both sides by 5:

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5 0
2 years ago
Electrical poles that carry elecrtical wire seem to get smaller the farther away they are. Find the apparent height of each pole
lisabon 2012 [21]

Answer:

The answer to the question is;

Then the apparent height of each pole if the tallest pole is 50 feet tall and there is 100 feet between each pole is \frac{50*x}{(x + 100*n)} .

Step-by-step explanation:

To answer the question we have

Let the location of the closest pole = x

Let the height of the closest pole = h feet

Also let the actual  height of the pole at location 100×n feet away be 50 feet

Where n = 1, 2, 3, ...∞

Then we have by taking tangent of the similar triangles so formed by the poles

Then h/x = 50/(x +100·n)

Therefore h = 50 × x/(x +100·n) = 50·x ÷(x + 100·n) = 50 \frac{x}{(x + 100n)} feet

The apparent height of each pole if the tallest pole is 50 feet tall and there is 100 feet between each pole is 50·x /(x+100·n) where n is the number of 100 feet further away the pole is e.g when n = 1 we have

h = 50·x /(x+100·1)  = 50·x /(x+100)

5 0
3 years ago
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