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3 years ago

I WILL GIVE U BRAInLIEST HURRY Up Plzzz

Mathematics

2 answers:

bezimeni [28]3 years ago

6 0

Answer:

The first one third one and last one

Step-by-step explanation:

All except B.

Y_Kistochka [10]3 years ago

3 0

Answer:

(1,-4)

(-9,-12)

(6,0)

Step-by-step explanation:

substitute each other pair into equation

4x-5y=24

(1,-4)

4(1)-5(-4)=24

4+20=24 ... true

(4,8)

4(4)-5(8)=24

16-40=24

-24=24 ... not true

(-9,-12)

4(-9)-5(-12)=24

-36+60=24

24=24... true

(6,0)

4(6)-5(0)=24

24= 24... true

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Help me please!..

AlexFokin [52]

Answer:

44 times

Step-by-step explanation:

There is a 50% (2/4) chance that this could occur, as given in the question.

88*.5 = 44.

8 0

2 years ago

Security A rounds every 2 minutes and 20 seconds in the gate 1. Security B rounds every 1 minute and 40 seconds in the gate 2. I

Elden [556K]

Answer:

$Time = 11\frac{2}{3}\ min$

Step-by-step explanation:

Given

$Security\ A = 2\ mins, 20\ secs$

$Security\ B = 1\ mins, 40\ secs$

Required

After how many minutes, will they round together

First, convert the given time to minutes

$Security\ A = 2\ mins, 20\ secs$

$Security\ A = 2\ mins+ 20\ secs$

$Security\ A = 2\ mins+ \frac{20}{60}\ min$

$Security\ A = 2\ mins+ \frac{1}{3}\ min$

$Security\ A = 2\frac{1}{3}\ min$

$Security\ B = 1\ mins, 40\ secs$

$Security\ B = 1\ mins+ 40\ secs$

$Security\ B = 1\ mins+ \frac{40}{60}\ min$

$Security\ B = 1\frac{2}{3}\ min$

So, we have:

$Security\ A = 2\frac{1}{3}\ min$

$Security\ B = 1\frac{2}{3}\ min$

List out the multiples of the time of both security personnel take round.

$Security\ A = 2\frac{1}{3}min,\ 4\frac{2}{3}min,\ 7min,\ 9\frac{1}{3}min,\ 11\frac{2}{3}min...$

$Security\ B = 1\frac{2}{3}min,\ 3\frac{1}{3}min,\ 5min,\ 6\frac{2}{3}min,\ 8\frac{1}{3}min,\ 10min\ ,11\frac{2}{3}min,...$

In the above lists, the common time is:

$Time = 11\frac{2}{3}\ min$

<em>This implies that they go on round after </em> $11\frac{2}{3}\ min$ <em></em>

4 0

3 years ago

Which of the following statements explains why 0.8 is or is not a rational number?

noname [10]

Answer:

Step-by-step explanation:

its 8 bc when u put it under 9 it repeats

7 0

3 years ago

Write 728,937,000,000 i. Scientific notation

Ksju [112]

Answer:

7.28937 x 10¹¹

Step-by-step explanation:

728,937,000,000

= 7.28937 x 100,000,000,000

= 7.28937 x 10¹¹

4 0

2 years ago

Which property justifies the work shown?

djyliett [7]

Iinnkjnmkjmkjnbhhuhffgytfccvhuuuhjko

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3 years ago