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stealth61 [152]
2 years ago
13

A student is running a 5-kilometer race. He runs 1 kilometer every 3 minutes. Select the function that describes his distance fr

om the finish line after x minutes. (1 point) A.f(x) = − 1 over 3 x + 5 B.f(x) = − 1 over 5 x + 3 C.f(x) = 1 over 5 x + 5 D. f(x) = 1 over 3 x + 3
Mathematics
1 answer:
ICE Princess25 [194]2 years ago
3 0
The function that describes his distance from the finish line is f(x) = - 1/3 x + 5 the correct answer between all the choices gives is the first choice or letter A
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A square classroom has a wall that is 21 feet long. What is the area of the classroom?
Rasek [7]

<u>Answer and Step-by-Step explaination:</u>

Area =Length time Width

Area= 21*21

Area=441

6 0
3 years ago
Find the value of x
sveticcg [70]

Answer:

<h2>          x = 15</h2>

Step-by-step explanation:

RQ < PR < PQ

TV < UV < UT

ΔPQR~ΔUTV   ⇒     \dfrac{RQ}{TV}=\dfrac{PR}{UV}

\dfrac{8}{x-3}=\dfrac{14}{x+6}\\\\8(x+6)=14(x-3)\\\\8x+48=14x-42\\\\48+42=14x-8x\\\\90=6x\\\\x=90:6=15

6 0
2 years ago
A small box of cereal contains 10 cups of cereal. A medium box of the same cereal contains 30% more cereal than the small box. H
mario62 [17]

Answer:

13 cups

Step-by-step explanation:

If the small box has 10 cups, then:

<u> (small) </u>     <u> 10 cups </u>   =  <u> 100% </u>

(medium)    x cups     =   130%

Now, cross multiply:

10 (130) = x (100)

1300 = 100x

x = 13

Another way to solve this is by turning 30% into a decimal:

30/100 = 0.3

10 (0.3) = 3

Now you have 30% of the 10 cups, but you need <u>30% more</u><em> </em>than the small box, so:

10 + 3 = 13 cups

6 0
2 years ago
What is the answer for Ab•2b
7nadin3 [17]

Answer:

2Ab^2

Step-by-step explanation:

I think its right

4 0
2 years ago
Ur wrong its acutully 39.8 not 39.75 u came up with the wrong answer.
alukav5142 [94]
It is 39.8 your right
3 0
3 years ago
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