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djverab [1.8K]
3 years ago
14

Please help-Due tonight-12:00 pm I will mark brainlest if it is right

Mathematics
1 answer:
mihalych1998 [28]3 years ago
6 0

Answer:4

Step-by-step explanation:

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Subtract and write out in minutes and seconds 87 seconds from 100 seconds
alexandr402 [8]

Answer:

  00:13  mm:ss

Step-by-step explanation:

There are 60 seconds in a minute. This fact can be used to convert the time period(s) to minutes and seconds either before or after you do the subtraction.

<h3>Difference</h3>

It is often convenient to do arithmetic with all of the numbers having the same units. Here, we are given two values in seconds and asked for their difference.

  100 s - 87 s = (100 -87) s = 13 s

The difference between the two time periods is 0 minutes and 13 seconds.

<h3>Conversion</h3>

If you like, the numbers can be converted to minutes and seconds before the subtraction. Since there are 60 seconds in a minute, the number of minutes is found by dividing seconds by 60. The remainder is the number of seconds that will be added to the time in minutes:

  87 seconds = ⌊87/60⌋ minutes + (87 mod 60) seconds

  = 1 minute 27 seconds

  100 seconds = ⌊100/60⌋ minutes + (100 mod 60) seconds

  = 1 minute 40 seconds

Then the difference is found in the same way we would find a difference involving different variables. (A unit can be treated as though it were a variable.)

  (1 min 40 s) -(1 min 27 s) = (1 -1 min) + (40-27 s) = 0 min 13 s

The difference between the two time periods is 0 minutes and 13 seconds.

5 0
1 year ago
I need help please people help me
Oksi-84 [34.3K]
It is the first one on the left ( 4 divided by 7)
6 0
3 years ago
If the decagon has all equal sides, and the measure of angle ATB is 120°, find the degree measure of angle TBP.
Komok [63]

Consider the given decagon of all equal sides.

Given: \angle ATB= 120^{\circ}

To find: \angle TBP= ?

Construction: Join a dotted line from point T to P.

Now, \angle ATB and \angle BTP lies on the straight line. Hence, they form linear pair.

Therefore, \angle ATB +\angle BTP= 180^{\circ}

120^{\circ} +\angle BTP= 180^{\circ}

\angle BTP= 180^{\circ}-120^{\circ}

\angle BTP = 60^{\circ} (equation 1)

Now, consider triangle TBP with two equal sides TB and BP.

By using the property

"Angles opposite to equal sides of an isosceles triangle are equal."

Since TB=BP, therefore the angles opposite to these sides are also equal.

\angle BPT= \angle BTP

From equation 1,

\angle BPT= \angle BTP = 60^{\circ}

Now, in triangle TBP,

By using angle sum property, which states

" The sum of measures of all three angles of a triangle is 180 degrees"

\angle BPT+ \angle BTP+ \angle TBP= 180^{\circ}

60^{\circ}+60^{\circ}+ \angle TBP= 180^{\circ}

120^{\circ}+ \angle TBP= 180^{\circ}

\angle TBP= 180^{\circ}-120^{\circ}

\angle TBP= 60^{\circ}

So, the measure of angle TBP is 60 degrees.



8 0
3 years ago
You found the prime factorization of the number 72. Explain how you can check your answer.
ch4aika [34]

To find out whether a prime factorization is correct, verify that all the factors are indeed prime. Then multiply the factors. The product should equal 72.

5 0
3 years ago
Find an equation of the line having the given slope and containing the given point.slope 5/6; through (-6, 6)
Akimi4 [234]
I hope this helps you x'= -6 y'= 6 slope=5/6 slope. (x'-x)=y'-y 5/6. (-6-x)=6-y 5/6. -6-x.5/6=6-y -5-5x/6=6-y y= 5x/6+11
7 0
3 years ago
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