3 years ago

Three equivalent ratios for 9/7 15/18 21/28 please help

Mathematics

1 answer:

slega [8]3 years ago

8 0

9/7=18/14 15/18=5/6 21/28=3/4

You might be interested in

Bill placed a coordinate grid over a drawing of his back yard. Points A (-2, -3) and B (4, 9) represent two corners of his garde

irinina [24]

Answer:

(1;3)

Step-by-step explanation:

midpoint=(x1+x2;y1+y2)÷2

=(-2+4;-3+9)÷2

=(2;6)÷2

=(1;3)

6 0

3 years ago

Someone answer plzzzzzzz

sergiy2304 [10]

1a) 250 * .12=Number of Photos
1b) The answer would be 30

4 0

3 years ago

A camera attached to a telescope photographs a stars image once every .045 seconds. How many complete images can the camera capt

padilas [110]

Writing and solving an equation of ratios would seem to be the best way to go.

0.045 sec 3 sec
------------- = ------------
1 image x

Then 0.045x = 3, and x = 66 2/3 images, best rounded down to 66 images.

4 0

3 years ago

Need to find the volume. measurements in picture, please help.

o-na [289]

Answer:

V = 288.5 $yd^{3}$

Step-by-step explanation:

To find the volume of a cone, use this equation:

$V = \pi r^{2}\frac{h}{3}$

r = radius

h = height

We aren't given the height of the cone, just the length of the side. To find the height use the Pythagorean Theorem:

$a^{2}+ b^{2}= c^{2}$

The value of 12.1 yds is the hypotenuse and the radius is the value of one of the legs. So, set it up like this:

$a^{2}+5^{2} =12.1^{2}$

Now, solve:

$a^{2}+25= 146.41$ Distribute the square

$a^{2} = 121.41$ Subtract 25 from 146.41

$\sqrt{a^{2} }=\sqrt{121.41}$

a = 11.01862

So, the height is equal to 11.01862 yds.

Now, we can plug everything into the volume equation:

$V = \pi (5)^{2}\frac{11.01862}{3}$

Simplify (use calculator):

V = 288.5 $yd^{3}$

So, the volume of the cone is equal to 288.5 $yd^{3}$

5 0

2 years ago

Find the area of a circle with a diameter of 16 either enter an exact answer in terms of pie or use 3.14 for pie and enter your

elixir [45]

Is there a picture for the equation

8 0

3 years ago