3 years ago

StartFraction 4 over 5 EndFraction = StartFraction 9 over x EndFraction?

Mathematics

1 answer:

scZoUnD [109]3 years ago

6 0

Answer:

x= 11.25

Step-by-step explanation:

cross multiply 9 by 5 divided by 4 and that would give you x

You might be interested in

How do you take the derivative of lnx?

Maurinko [17]

$(\ln x)'=\dfrac{1}{x}$

7 0

3 years ago

Cylinders A and B are similar. The volume of cylinder A is 20mm3. Calculate the volume of cylinder B.

MrRa [10]

The question is incomplete. The complete question is :

Cylinders A and B are similar. The length of the cylinder A is 4 mm and the length of cylinder B is 6 mm. The volume of cylinder A is 20mm3. Calculate the volume of cylinder B.

Answer:

67.5 $mm^3$

Step-by-step explanation:

Given that :

Cylinder A and cylinder B are similar.

Let volume of cylinder A = 20 $mm^3$

We know the volume of a cylinder is given by V = $\pi r^2 h$

where, r is the radius of the cylinder

h is the height of the cylinder

We have to find the scale factor.

The length scale factor is = $\frac{6}{4}$

$=\frac{3}{2}$

Area scale factor $=\left(\frac{3}{2}\right)^2$

$=\frac{9}{4}$

∴ Volume scale factor $=\left(\frac{3}{2}\right)^3$

$=\frac{27}{8}$

Therefore, the volume of cylinder B is $=20 \times \frac{27}{8}$

= 67.5 $mm^3$

5 0

3 years ago

Biught 820 books and 34 books on a shelf how many shelves

kramer

24.12 because you have to divide 34 into 820 and then you get 24.12

6 0

3 years ago

Jorge bought 16 apples for $8.00.

maks197457 [2]

assuming that 0 apples costs 0 dollars

and 16 apples costs $8

so we have the points

(0,0) and (16,8) in form (x,y)

graph below

5 0

3 years ago

The area of a rectangle is 48 inches.the width of the rectangle is 12. What the length

Setler [38]

Answer:A=WL

Answer is length of 4

Step-by-step explanation:

48=12*x

48÷12=4

12*4=48

5 0

3 years ago