3 years ago

There are 12 481 people at a concert.

Mathematics

1 answer:

Lilit [14]3 years ago

5 0

Answer:

I think you need the amount of boy children to solve this.

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Find the constant of proportionality k. Then write an equation for the relationship between x and y.

egoroff_w [7]

Answer:

k= 5

Equation is: y=5x

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3 years ago

A girl wants to count the steps of a moving escalator which is going up. If she is going up on it, she counts 60 steps. If she i

Luba_88 [7]

75. As she is going up, 15 stairs have been passed by the escalator moving. When she goes down same thing

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3 years ago

in a canoe race, a team paddles downstream 480 m in 60 s. The same team makes the trip upstream in 80 s. Find the team's rate in

Vera_Pavlovna [14]

480=60(v+s)

480=60v+60s

8=v+s

s=8-v...

480=80(v-s) using s from above we get:

480=80(v-(8-v))

6=v-8+v

6=2v-8

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So the rate of the team is 7m/s while the rate of the stream is 1m/s

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3 years ago

If it's possible to tell, decide if a and b are positive or negative: a-3>b-3 and b>4

Svetllana [295]

Answer:

a and b are positive

Step-by-step explanation:

We are given that

$a-3>b-3$

$b>4$

We have to find that a and b are positive or negative.

We have

$b>4$

It means b is positive and greater than 4.

$a-3>b-3$

Adding 3 on both sides

$a-3+3>b-3+3$

$a>b>4$

$\implies a>4$

Hence, a is positive and greater than 4.

Therefore, a and b are positive

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2 years ago

Which of the following shows an inconsistent system of equations?

77julia77 [94]

The third set is equivalent to

2x + y = 2
2x + y = -2

clearly inconsistent.

3 0

3 years ago