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shutvik [7]
3 years ago
11

Lin and Andre start walking toward each other at the same time from opposite ends of the 22-mile walking trail. Lin walks at a s

peed of 2.5 miles per hour. Andre walks at a speed of 3 miles per hour
Mathematics
2 answers:
goldfiish [28.3K]3 years ago
8 0

Answer:

Step-by-step explanation:

let they meet after t hours

2.5t+3t=22

5.5 t=22

55/10 t=22

t=22×10/55=4 hours

after 4 hours they meet.

Genrish500 [490]3 years ago
3 0

Answer:

they would meet after 4 hour since the start of their journey

Step-by-step explanation:

Supposing we have to calculate in what time will they cross each other

Given:

distance between the opposite ends = 22 miles

speed of Lin= 2.5 miles/hr

speed of Andre= 3 miles/hr

they both walk towards each other at the same time

Now the relative speed of approach = 3+2.5= 5.5 miles/hr

time of meet = distance/ speed of approach

= 22/5.5= 4 hours

so, they would meet after 4 hour since the start of their journey

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Yuki888 [10]

$ 3042

Explanation

we need to use the formula:

\begin{gathered} A=P(1+r)^t \\ \text{where} \\ \text{ P is the principal} \\ r\text{ is the rate ( in decimal)} \\ t\text{ is the time} \end{gathered}

Step 1

a)let

\begin{gathered} P=2500 \\ r=\text{ 4\% =}\frac{4}{100}=0.04 \\ r=0.04 \\ t=5\text{ ( years)} \end{gathered}

b) now, replace

\begin{gathered} A=P(1+r)^t \\ A=2500(1+0.04)^5 \\ A=2500(1.04)^5 \\ A=2500(1.2166) \\ A=3041.63 \\ \text{rounded} \\ A=3042 \end{gathered}

therefore, the answer is

$ 3042

8 0
1 year ago
The bottom of a doorway to a building is 3.45 feet above the ground, and a ramp to the door for the disabled is at an angle of 6
Darya [45]

Answer:

The ramp should be 32.9 feet longer.

Step-by-step explanation:

When the ramp is at 6^{o} to the ground, its length can be determined by applying the appropriate trigonometric function. Let the length be represented by l, so that;

Sin θ = \frac{opposite}{hypotenuse}

Sin 6^{o} = \frac{3.45}{l}

l = \frac{3.45}{Sin 6^{o} }

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 = 33.0048

l = 33.0 feet

When the angle is reduced to 3^{o}, the length of the ramp would be;

Sin θ = \frac{opposite}{hypotenuse}

Sin 3^{o} = \frac{3.45}{l}

l = \frac{3.45}{Sin 3^{o} }

 = \frac{3.45}{0.05234}

= 65.9152

l = 65.9 feet

Change in length of ramp = 65.9 - 33.0

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The ramp should be 32.9 feet longer.

5 0
3 years ago
Surface area of a cylinder
Ainat [17]

Answer:

Right cylinder

Step-by-step explanation:

Solve for surface arb

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3 0
2 years ago
Which solution value satisfies the inequality equation x-5 s 14? Ox= 25 x = 21 x= 19 x = 20​
PolarNik [594]

Answer:

x = 19

Step-by-step explanation:

x-5 = 14\\

Collect like terms

x =14+5

Add ; 14+5 =19

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6 0
3 years ago
The ratio of cats to dogs at a local pet shelter is 5 to 3. If there are 60 cats in the shelter, which of
andre [41]

Answer:

Step-by-step explanation:

cats : dogs

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Since you are looking for dogs it is :-

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2 years ago
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