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Sholpan [36]
3 years ago
13

A recording of the current weather conditions last 3/4 minute. If the recording plays repeatedly , how many times would it play

in 1 hour?
Mathematics
2 answers:
maria [59]3 years ago
8 0

Answer:

The recording repeated  plays 80 times in 1 hour

Step-by-step explanation:

A recording last \frac{3}{4} mins

Let x be the number of times it repeats in 1 hour

Using ratio and proportion,

1\:time=\frac{3}{4} mins\\ x\:times=1\: hour

But 1\:hr=60\:mins

This implies that

1\:time=\frac{3}{4} mins\\ x\:times=60\: mins

\frac{3}{4}x=60

x=\frac{4\times60}{3}

x=80\:times

Hence the recording repeatedly  plays 80 times in 1 hour


zhenek [66]3 years ago
7 0
45 times

1 hour = 60 minutes

60 multiplied by 3/4 = 180/4 = 45
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The larger number is 18 more than twice the smaller. If the sum of the two numbers is 93, find both numbers
Ganezh [65]

Answer:

larger number=18+(2x)

smaller number=x

(18+2x)+x=93

18 +3x=93

3x=93-18

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6 0
3 years ago
Find the equation of the line that goes through (-8,11) and is perpendicular to x= - 15. Write the equation in the form x = a, y
galben [10]

Answer:

y=11

Step-by-step explanation:

Hi there!

We want to find the equation of the line that passes through the point (-8, 11) and is perpendicular to x=-15

If a line is perpendicular to another line, it means that the slopes of those lines are negative and reciprocal; in other words, the product of the slopes is equal to -1

The line x=-15 has an undefined slope, which we can represent as 1/0, which is also undefined.

To find the slope of the line perpendicular to x=-15, we can use this equation (m is the slope):

m_1*m_2=-1

m_1 in this instance would be 1/0, so we can substitute it into the equation:

\frac{1}{0} *m_2=-1

Multiply both sides by 0

m_2=0

So the slope of the new line is 0

We can substitute it into the equation y=mx+b, where m is the slope and b is the y intercept:

y=0x+b

Now we need to find b:

Since the equation passes through the point (-8,11), we can use its values to solve for b.

Substitute -8 as x and 11 as y:

11=0(-8)+b

Multiply

11=0+b, or 11=b

So substitute into the equation:

y=0x+11

We can also write the equation as y=11

Hope this helps!

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Answer:

the answer is true




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