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Paul [167]
3 years ago
5

I REALLY NEED HELP , “ a company is designing a new cylindrical water bottle. the volume of the bottle will be 207 cm *to the 3r

d power* the height of the water bottle is 8.4 cm. what is the radius of the water bottle?”

Mathematics
1 answer:
asambeis [7]3 years ago
4 0

Answer:

Radius, r = 2.80 cm

Step-by-step explanation:

Given the following data;

Volume of cylinder = 207 cm³

Height = 8.4 cm

Pie, π = 3.14

To find the radius of the water bottle;

Mathematically, the volume of a cylinder is given by the formula;

V = πr²h

Where;

V is the volume of a cylinder.

r represents the radius of the cylinder.

h represents the height of the cylinder.

Substituting into the formula, we have;

207 = 3.14 * r² * 8.4

207 = 26.376r²

r² = 207/26.376

r² = 7.85

r = √7.85

Radius, r = 2.80 cm

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Kaylis [27]
50. 
.25 multiplied by 200 = 50
7 0
3 years ago
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3. In August, Cory begins school shopping for his triplet daughters. One day, he
Ksju [112]

d=37\

<u>Step-by-step explanation:</u>

Here , we have In August, Cory begins school shopping for his triplet daughters. One day, he  bought 10 pairs of socks for $2.50 each and 3 pairs of shoes for d dollars each.  He spent a total of $135.97. We need to find What does d equal . Let's find out:

One day, he  bought 10 pairs of socks for $2.50 each

Following is the equation for this info:

⇒ Money = 10(2.50)

⇒ Money = 25\

3 pairs of shoes for d dollars each

Following is the equation for this info:

⇒ Money = 3(d)

⇒ Money = 3d\

He spent a total of $135.97

Following is the equation for this info:

⇒ Total-Money = 135.97

⇒ 25+3d=135.97

⇒ 3d=135.97-25

⇒ d=37\

Therefore , d=37\ .

3 0
3 years ago
What property is represented in the equation: ab - ac = a(b-C)*
vesna_86 [32]

Answer:

Distributive

Step-by-step explanation:

Ex of Distributive: 2.4 + 2.3 = 2 ( 3 + 4 )

Ex of Commutative: 4 + 3 = 3 + 4

Ex of Associative: 3 + ( 4 + 5 ) = ( 3 + 5 ) + 5

Ex of Identity: 7 x 1 = 7

8 0
3 years ago
Read 2 more answers
Please help me i will give you brainly please
Natalija [7]

Answer:

19. 3x+5/2x+7 =5

or, 3x+5=5×(2x + 7)

or, 3x + 5 = 10x + 35

or, 5 - 35 = 10x - 3x

or, -30 = 7x

or, -30/7 = x

21. let x be the other number

we know,

or, x × 1/7 =2

or, x/7 =2

or, x = 14

therefore, the other number is 14.

6 0
3 years ago
Pls help I don't understand:
sineoko [7]

Answer:

Part a) T(d)=2d+30

Part b) T(6)=42\ minutes

Step-by-step explanation:

Part a) Write an equation for T (d)

Let

d ----> the number of days

T ---> the time in minutes of the treadmill

we know that

The linear equation in slope intercept form is equal to

T=md+b

where

m is the slope or unit rate

b is the y-intercept or initial value

In this problem we have

The slope or unit  rate is

m=2\ \frac{minutes}{day}

The y-intercept or initial value is

b=30\ minutes

substitute

T(d)=2d+30

Part b) Find T (6), the minutes he will spend on the treadmill on day 6

For d=6

substitute in the equation and solve for T

T(6)=2(6)+30

T(6)=42\ minutes

8 0
3 years ago
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