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1 year ago

10 gallons of gasoline costs $30. The cost of gasoline per gallon is

Mathematics

2 answers:

Evgesh-ka [11]1 year ago

8 0

Answer:

The cost per gallon is $3.

Step-by-step explanation:

10 = $30

1 = x

Cross multiply

$30*1 = 10*x

Divide through by 10

($30*1)/10 = (10*x)/ 10

($30*1)/10 = (10*x)/10

$30/10 = 10x/10

$3 = x

x= $3

Kipish [7]1 year ago

4 0

Answer:

10kahbsbdnieknababavaysisiee

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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 = $\frac{259.10 - r^{2} }{r}$ (1)

From Radius + Height = 37

r + h = 37 (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

What is the volume of a cylinder tank with diameter of 50cm and height of 80cm

stepladder [879]

Answer:

12566.37061435917

4000π

Step-by-step explanation:

the equation is 50π×80

this is because you have to find the area of the circle which is diameter times pi and then you multiply that by the height of the cylinder

5 0

3 years ago

9.write an expression to show how many meters are equivalent to x centimeters................................10.use your express

Sauron [17]

Answer:400metters

Step-by-step explanation:

8 0

3 years ago

3. In August, Cory begins school shopping for his triplet daughters. One day, he

Ksju [112]

$d=37\$

Step-by-step explanation:

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:

⇒ $Money = 10(2.50)$