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katen-ka-za [31]
3 years ago
15

Which speed is the fastest?

Mathematics
1 answer:
Schach [20]3 years ago
4 0

Answer:

C, 180 miles/ 3 hours

Step-by-step explanation:

C is the correct answer because you need to find the unit rate of all of the numbers.

A. = 30 mph

B. = 45 mph

C. = 60 mph

D. = 40 mph

Therefore, C is the fastest.

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For all values of x and y, which expression is equivalent to 8x + 6y?
elixir [45]

Answer:

12

Step-by-step explanation:

5 0
3 years ago
A telephone company charges its customers per minute to make long-distance calls. The cost, c, can be represented by c = .12m wh
Ksivusya [100]

Answer:

m ≥ 0

Step-by-step explanation:

Since the cost is represented by c = 0.12m, the domain should be a positive number, this is because number of minutes can't be written in negative. Therefore, the most reasonable number for the domain would be the set of positive whole numbers which means, m≥0.

7 0
3 years ago
The figure shows △ABC . BD is the angle bisector of ∠ABC .
Misha Larkins [42]
From angle bisector theorem, we know that:

\dfrac{|AD|}{|DC|}=\dfrac{|BA|}{|BC|}\\\\\\\dfrac{|AD|}{|DC|}=\dfrac{8}{10}=\dfrac{4}{5}

Moreover:

|AD|+|DC|=6

so:

|DC|=6-|AD|

and

\dfrac{|AD|}{|DC|}=\dfrac{4}{5}\\\\\\\dfrac{|AD|}{6-|AD|}=\dfrac{4}{5}\qquad\qquad\text{cross multiplying}\\\\\\ 5\cdot|AD|=4\cdot\big(6-|AD|\big)\\\\5\cdot|AD|=24-4\cdot|AD|\\\\5\cdot|AD|+4\cdot|AD|=24\\\\9\cdot|AD|=24\qquad|:9\\\\\\|AD|=\dfrac{24}{9}=\boxed{\dfrac{8}{3}}

3 0
3 years ago
Read 2 more answers
If the measure of angle 1 is 110 degrees and the measure of angle 3 is (2 x + 10) degrees, what is the value of x?
user100 [1]

Answer:

Correct option is

B

90

∘

,90

∘

,90

∘

Let AB and CD be two lines Intersecting at O, such that, ∠AOD=90

∘

Now, ∠AOD=∠COB=90

∘

(Vertically opposite angles)

⟹∠AOD+∠DOB=180

o

(Angles on a straight line)

⟹90+∠DOB=180

o

∠DOB=90

∘

∠DOB=∠AOC=90

∘

(Vertically opposite angles)

Thus, all angles are 90

∘

.

7 0
2 years ago
Given f(x) = 4(x - 8), determine the value of f(10).
Komok [63]

Answer:

f(x) = 4(x - 8)

        4 (10 -8) = 8

Step-by-step explanation:

6 0
4 years ago
Read 2 more answers
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