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-Dominant- [34]
3 years ago
13

A man travels 4 ⅓ miles in 2 ½ hours. what is his speed in miles per hour?

Mathematics
1 answer:
natulia [17]3 years ago
3 0
Approximately 1.7 miles per hour
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In order to find constant rate, you need to use change in y ÷ change in x right?
NemiM [27]

Yes u have to and as long are you do than you would be right

3 0
3 years ago
Plz help will be marked BRAINLIEST!!
dusya [7]

Answer:

Step-by-step explanation:

a= 18 degrees

b= 36 degrees

c= 108 degrees

7 0
3 years ago
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An airplane climbs 100 feet during the first second after takeoff. In each succeeding second it climbs 100 feet more than it cli
tigry1 [53]

Answer:

15 seconds.

Step-by-step explanation:

∵ The distance covered by plane in first second = 100 ft,

Also, in each succeeding second it climbs 100 feet more than it climbed during the previous second,

So, distance covered in second second = 200,

In third second = 300,

In fourth second = 400,

............, so on....

Thus, the total distance covered by plane in n seconds = 100 + 200 + 300 +400......... upto n seconds

=\frac{n}{2}(2\times 100 + (n-1)100)  ( Sum of AP )

=\frac{n}{2}(200+100n-100)

=\frac{n}{2}(100+100n)

=50n+50n^2

Suppose the distance covered in n seconds is 12,000 feet,

\implies 50n+50n^2=12000

n+n^2=240

n^2+n-240=0

n^2+16n-15n-240=0

n(n+16)-15(n+16)=0

(n-15)(n+16)=0

\implies n=15\text{ or }n=-16

∵ n can not be negative,

Hence, after 15 seconds the plane will reach an altitude of 12,000 feet above its takeoff height.

6 0
3 years ago
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0 + 895.6 = g · 568.57 + 895.6 · 1
seraphim [82]

Answer:

Steps

0+ 895.6 =gx 568.57 + 895.6 x 1

Switch sides

gx 568.57 + 895.6 x 1 =0+ 895.6

Multiply the numbers: 895.6 x 1= 895.6

568.57g + 895.6 = 0 + 895.6

Add the numbers: 0 + 895.6 = 895.6

568.57g + 895.6 = 895.6

Multiply both sides by 100

568.57g x 100 + 895.6 x 100 = 895.6 x 100

Refine

56857g + 89560 = 89560

Subtract 89560 from both sides

56857g + 89560 –89560=89560 – 89560

Simplify

56857g =0

Divide both sides by 56857

56857g/56857=0/56857

Simplify

g=0

7 0
2 years ago
PLEASE HELP WILL MARK BRAINLIEST
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Answer

Deon paid $2.20 per pound

It costs $5 per hour to rent a bike

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