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Anettt [7]
3 years ago
11

PLEASE HELP FASTT!!!!!!!!!!!!!!!!!!!!!!Determine whether each ratio is equivalent to 1/2,3/9, or 5/7.

Mathematics
1 answer:
torisob [31]3 years ago
4 0
1/2- 3/6 5/10 50/100
3/9- 2/6 1/3
5/7- 10/14 20/28
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Hallo what is thit see 45:5+90+66:2
Viefleur [7K]

45/5+90+66/2

=9 + 90 + 33

=99 +33

=132

7 0
2 years ago
A coin is flipped 50 times and lands on heads 32 times. What is the experimental probability the coin will land on heads on the
oee [108]
D because if you do a rate problem you do 50 times what equals 100 so times two then you do 32 times two
4 0
3 years ago
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Is this right??? Please answer
lesya692 [45]

Answer:Yes its correct!(good job)

Step-by-step explanation:If you want to doubule check just count the tens carefully and if your still sketchy about it just cir cle the ones you counted hope this helped!

7 0
3 years ago
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What is f(x) =|x – 4| + 1 graphed.?
ollegr [7]

Answer:

i d k

Step-by-step explanation:

3 0
2 years ago
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a train travels 288km at a uniform speed.if the speed has been 4km per hour more it would have taken one hour less for the same
Lostsunrise [7]

Given:

A train travels 288 km at a uniform speed.

If the speed has been 4 km per hour more it would have taken one hour less for the same journey.

To find:

The initial speed of the train.

Solution:

Let x km/h be the initial speed on the train.

New speed of train = (x+4) km/h

We know that,

Time=\dfrac{Distance}{Speed}

Time taken by the train initially to cover 288 km is \dfrac{288}{x} hours.

New time taken by the train to cover 288 km is \dfrac{288}{x+4} hours.

It is given that If the speed has been 4 km per hour more it would have taken one hour less for the same journey.

\dfrac{288}{x}-\dfrac{288}{x+4}=1

\dfrac{288(x+4)-288x}{x(x+4)}=1

288x+1152-288x=x^2+4x

1152=x^2+4x

0=x^2+4x-1152

Splitting the middle term, we get

x^2+36x-32x-1152=0

x(x+36)-32(x+36)=0

(x+36)(x-32)=0

x=-36,32

We know that the speed cannot be negative. So, the only possible value of x is 32.

Therefore, the speed of the train is 32 km/h.

3 0
2 years ago
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