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laila [671]
3 years ago
9

30 seconds of 2.5 mins in percentage

Mathematics
2 answers:
WARRIOR [948]3 years ago
7 0

Answer:

20%

Step-by-step explanation:

2.5 min =(60×2.5)sec=150 sec

30sec to 150sec=30×100/150=20%

baherus [9]3 years ago
5 0

Answer:

20 %

Step-by-step explanation:

2.5 mins = 150 sec

30 sec of 150 sec in % = 30/150 × 100

= 20 %

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Find the area of the sector.
attashe74 [19]

Answer: C . 147π / 4 mi²

Concept:

The sector is the part of a circle is enclosed by two radii of a circle and their intercepted arc.

A = (θ / 360) πr²

θ = angle of the sector

π = constant

r = radius

Solve:

<u>Given variable</u>

θ = 270°

r = 7 mi

<u>Given formula</u>

A = (θ / 360) πr²

<u>Substitute values into the formula</u>

A = (270 / 360) π (7)²

<u>Simplify exponents</u>

A = (270 / 360) π 49

<u>Simplify by multiplication</u>

A = (147 / 4) π

A = 147π / 4

Hope this helps!! :)

Please let me know if you have any questions

4 0
3 years ago
PLEASEE HELP ANYONE
Grace [21]
1- Leave the 1st case empty

2- Write on the 1st row each element of the trinomial in each case

3-Write on the 1st column in each case each of the element of the binomial

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----------- ║-----------------------------------------------------
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6 0
3 years ago
In a mathematics Olympiad, a correct answer is
qwelly [4]

Answer:

So Albert scored = 26 scores it's true and correct ! thank you:)

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lara [203]
Joan has 294 marbles
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4 years ago
Please help on question 12 or 13 as soon as possible
Anna007 [38]

Answer:

to know the summation of angles: (n-2)*180

here (n) represent numbers of sides

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3 0
3 years ago
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