3 years ago

What is 5 groups of 3

Mathematics

2 answers:

evablogger [386]3 years ago

7 0

Answer:

That is like 3x5 which is 15

Step-by-step explanation:

maw [93]3 years ago

4 0

5 groups of 3 is 3 groups of 5 or a total of 15

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Jane took 15 min to drive her boat upstream to water-ski at her favorite spot. Coming back later in the day, at the same boat

s344n2d4d5 [400]

Answer:

The speed of the boat in still water = 8 Km/hr

Step-by-step explanation:

Let the speed of the boat be x

According to question

(x-4)15 = (x+4)5

3x-12 = x+4

⇒x = 8 km/hr

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2 years ago

What is the equation of the line that is parallel to the line 5x + 2y = 12 and passes through the point (−2, 4)? y = – x – 1y =

Firlakuza [10]

The equation of the line parallel to 5x+2y=12 and passes through the point (-2, 4) is equal to y= -5/2x - 1

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3 years ago

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2r^2+3s^3-r^2+4t^2-r^2 if r=-2, s=-3, and t=5

dimulka [17.4K]

$2(-2)^2+3(-3)^3-(-2)^2+4(5)^2-(-2)^2 = 19$

19 is the answer.

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3 years ago

A. Reflection <br> B. Rotation <br> C. Translation <br> D. No Transformation

Luda [366]

Answer:D I think might be wrong

Step-by-step explanation:

8 0

3 years ago

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Approximate the change in the volume of a sphere when its radius changes from r= 5ft to r= 5.1ft (v(r)= 3/4 pi r^3)?

leva [86]

Answer:

18.03 cubic feet

Step-by-step explanation:

Hello,

Step 1

find the volume of the sphere when radius= 5 ft

$v(r)= \frac{3}{4} \pi r^3\\v(5)= \frac{3}{4}\pi (5\ ft)^3\\v(5)= \frac{3}{4}\pi *125\ ft^{3} \\v(5)=294.52\ cubic\ feet\\$

Step 2

find the volume of the sphere when radius= 5.1 ft

$v(r)= \frac{3}{4}\pi r^3\\v(5.1)= \frac{3}{4} \pi (5.1\ ft)^3\\v(5.1)= \frac{3}{4}\pi *132.651\ ft^{3} \\v(5.1)=312.551\ cubic\ feet\\\\$

Step 3

Compare the Volumes to find the change

$\frac{v(r_{2})}{v(r_{1})} =\frac{312.551}{294.52} =1.06$

the volumen of the sphere with radius = 5.1 is 1.06 times bigger than the first one(r=5)

Now, find the change

$change= {v(r_{2})-{v(r_{1})}} \\change=312.551\ cubic\ feet\ -294.52 cubic feet \\ change=18.031\ cubic\ feet$

change=18.03 cubic feet

Have a great day.

4 0

3 years ago