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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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3 years ago
During a period of extreme cold, the average daily temperature dropped decreased by 1. Feach day. How many days did it take for
PtichkaEL [24]

Answer:

The answer is 9 days

Step-by-step explanation:

First, we realise

-1.F = 1 day

-9.F = 9 days

The -1.F times 9 gives us one so the days times 9 as well.

Answer = 9

4 0
3 years ago
A regression analysis of 117 homes for sale produced the following model, where price is in thousands of dollars and size in squ
Vsevolod [243]

Answer:

A) m = 0.062

B) 202.87 thousand dollars

C) Original price = 116.07 thousand dollars. $6000 is called the error term.                                            

Step-by-step explanation:

We are given the following in the question:

Price = 47.87+0.062(size)

The above equation is regression equation where price is in thousand dollars and size in square feet.

Let p be the prize and s be the size.

p(s) = 47.87 + 0.062s

Comparing it to linear equation, we have,

y= mx + c

where m is the slope and c is the y-intercept.

m = 0.062

c = 47.87

A) slope of the line

The slope of line tells the rate of change. Thus, it tells the change in price if the size of house is increased by 1 square feet.

The price of house increases by 0.062 thousand dollars if the size of house is increased by 1 square feet.

B) Price of house

We are given s = 2500. Putting this value in the equation.

p(2500) = 47.87 + 0.062(2500) =202.87

Thus, the price of a 2500 square feet house is 202.87 thousand dollars.

C) We are given s = 1100

Putting the value in the equation:

p(1100) = 47.87 + 0.062(1100) =116.07

Original price = 116.07 thousand dollars

Asking price =

116.07 - 6 = 110.07

The buyer is asking for 110.07 thousand dollars.

$6000 is called the error term.

3 0
3 years ago
Select the correct answer.
jenyasd209 [6]

Answer:

I think it is B it is my guss

4 0
3 years ago
I need help...like fast plezz
liubo4ka [24]

Answer:

80°

Step-by-step explanation:

176 - 32 = 144

144(4/9) = 80°

the answer is 80°

6 0
2 years ago
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