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3 years ago

Is 1931 divisible to 9

Mathematics

2 answers:

Aleks [24]3 years ago

5 0

Not evenly it would give you 214.5555556

vredina [299]3 years ago

4 0

a number is divisible by 9 if the sum of the digits is divisible by 9

1+9+3+1 = 14

14 is not divisible by 9 so 1931 is not divisible by 9

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Wendy wants to run 3 miles. Each lap around the track at her school is mile.

aliina [53]

Answer:

Wendy needs to run 3 laps to run 3 miles.

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3 years ago

Naomi has 45 minutes to get ready for school she spends x minutes getting dressed write an expression that respetents the number

andriy [413]

ANSWER

$(45 - x) \: minutes$

EXPLANATION

Total minutes Naomi has at her disposal is 45 minutes.

The number of minutes she spends getting dressed is

$x$

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The number of minutes she still have to get ready is

$(45 - x) \: minutes$

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3 years ago

Find the measure of b.

Alika [10]

Answer:

b = 55°

Step-by-step explanation:

The angle at the centre is twice the angle on the circle subtended by the same arc, then

a = 0.5 × 110° = 55°

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b = a = 55°

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2 years ago

A cone with a radius of 3" has a total area of 24π sq. in. Find the volume of the cone.

Rus_ich [418]

The answer is 12π.

To get the volume of the cone, we need the height. The radius is given.

V = πr² × (h/3)

The total surface area of the cone is:
SA = πr² + πrl where r is radius and l is slant height

24π = π(3)² + π(3)(l)
24π = 9π + 3πl
24π - 9π = 3πl
15π = 3πl
l = 15π / 3π
l = 5

Using Phytagoras, we can calculate the height of the cone:
l² = h² + r²
5² = h² + 3²
25 - 9 = h²
h = √16
h = 4

Therefore the volume is:
V = π(3)² × (4 / 3)
V = 3π × 4
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5 0

3 years ago

Read 2 more answers

Last summer, Marion was 3 1/2 feet tall. She was 4 inches taller than her brother Elijah. She was 1 1/4 feet shorter than her si

solniwko [45]

Answer:

Answers below

Step-by-step explanation:

Marion: 42 inches

Elijah: 38 inches

Lorie: 57 inches

Convert each to inches and solve.

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8 0

3 years ago