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3 years ago

What is the value of 8(15-4)/4^2-5

Mathematics

1 answer:

kolbaska11 [484]3 years ago

4 0

Answer: 0.5

Step-by-step explanation:

Android calculator accepts the above question via copy and paste, and gives 0.5

The point of this question is to try to discover whether or not you know what the expression means.

Rewriting it as (8(15-4)/(4×4)) - 5 would show that you know the meaning. You can check that by feeding it into the calculator as well.

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A church rings its bells every 15 minutes, the school rings its bells every 20 minutes and the day care center rings its bells e

Dima020 [189]

Answer:

5 : 00 PM

Step-by-step explanation:

Given,

Church ring bells every 15 minutes,

School rings its bells every 20 minutes,

And, day care center rings its bells every 25 minutes,

Thus, the number of minutes after which they will ring together = LCM (15, 20, 25)

∵ 15 = 3 × 5,

20 = 2 × 2 × 5,

25 = 5 × 5,

Thus, LCM (15, 20, 25) = 300

Now, 1 minute = 1/60 hours ⇒ 300 minutes = 5 hours,

Hence, after 5 hours they will ring together,

If they rang at 12:00 PM,

Then they will ring after 5 hours that is 5:00 PM.

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3 years ago

Pattern in 6, 7, 13, 20, ?

Len [333]

This is a Fibonacci sequence:

6, 7, 13, 20, 33, 53, 86, 139, 225, ...

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3 years ago

What is the slope of this line

nevsk [136]

Answer:

The slope of a line characterizes the direction of a line. To find the slope, you divide the difference of the y-coordinates of 2 points on a line by the difference of the x-coordinates of those same 2 points .

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3 years ago

Read 2 more answers

What is the difference of (4-5y)-2(3.5y-8)?

Dafna1 [17]

<span>20 - 12y Simplify parentheses: 4 - 5y - 7y + 16 Combine similar terms: 4 + 16 - 5y - 7y Simplify: 20 - 12y</span>

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4 years ago

10 times 60000000000000000000000000000000000000000000000000000000000000000000

enyata [817]

Answer:

600000000000000000000000000000000000000000000000000000000000000000000

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3 years ago