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4 years ago

15/12=10/X find X plz help

2 answers:

7 0

You multiply 10 and 12 because you multiply the two numbers across from each other and divide by the other which is 15 and that gives you 8.

Debora [2.8K]4 years ago

5 0

15/12=10/x
x=0.125. Hope it help!

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The sum of the radius of the base and the height of a solid cylinder is 37m. If the total surface area of the cylinder is 1628 m

MA_775_DIABLO [31]

Answer:

4618.14 $m^{3}$ or 4618 $m^{3}$

Step-by-step explanation:

From T.S.A = 2 $\pi$ rh + 2 $\pi$ $r^{2}$

where T.S.A = 1628 $m^{2}$

1628 = 2 $\pi$ rh + 2 $\pi$ $r^{2}$

1628 = ( rh + $r^{2}$ ) 2 $\pi$

by dividing both side by 2 $\pi$

$\frac{1628}{2\pi }$ = rh + $r^{2}$

259.10 = rh + $r^{2}$

rh = 259.10 - $r^{2}$

h = $\frac{259.10 - r^{2} }{r}$ <u> </u>(1)

From Radius + Height = 37

r + h = 37 <u> </u>(2)

by substituting eqn 1 into 2

r + $\frac{259.10 - r^{2} }{r}$ = 37

by multiplying r to both side

$r^{2}$ + 259.10 - $r^{2}$ = 37r

259.10 = 37r

r = $\frac{259.10}{37}$

r = 7.00 ≅ 7

From Eqn 2

r + h = 37

7 + h = 37

h = 37 - 7

h = 30

so Volume of a cylinder = $\pi r^{2} h$

V = $\pi$ * $7^{2}$ * 30

V = 4618.14 $m^{3}$ ≅ 4618 $m^{3}$

4 0

4 years ago

Read 2 more answers

Write 4 over 6 in simplest form.

aalyn [17]

Answer:

2/3

Step-by-step explanation:

Cancel the common factor 2 = 2/3

6 0

3 years ago

My last question someone help

sattari [20]

Arc BC is 60

This is an central angle, so the angle is the same as the arc

angle is 60

IF this goes all the way to the opposite side, then you will have to divide by 1/2

hope this helps

4 0

4 years ago

1. What number decreased by 9 is 25? (0.5 pt)

Blizzard [7]

Answer:

Step-by-step explanation:

x - 9 = 25

x=25+9

x=34

4 0

3 years ago

You borrowed 12000 for 6 years at interest rate of 1.25% what is the maturity value of the loan

aniked [119]

Answer:

$12,928.60

Step-by-step explanation:

We can use A = P(1 + r)^t to solve this

Step 1: Plug known variables

P = 12000(1 + 0.0125)^6

Step 2: Solve

P = 12000(1.0125)^6

P = 12928.6

And we have our final answer!

7 0

3 years ago