Answer:
the radius of the inflated balloon is:
Step-by-step explanation:
Since it is stated that the water balloon has a spherical shape: We can confidently use the formula for the volume of a sphere to calculate the radius.
Volume is denoted as 'V' and radius is denoted as 'r'.
Volume is 176,868 mm^3
Now we can solve for the radius r.
cube root both sides
the radius of the inflated balloon is:
Answer:
<em>10</em>
Step-by-step explanation:
<em>To solve this, we have to do 4 divided by 2/5, because there are stops every 2/5 mile of a 4-mile track.</em>
<em>To make dividing easier, you can write 4 as a fraction, which would be 4/1</em>
<em>Now, divide:</em>
<em>4/1 ÷ 2/5</em>
<em>Remember that when you divide a fraction by another fraction, you can multiply the first fraction by the reciprocal of the second fraction and get the same fraction.</em>
<em>The reciprocal of 2/5 is 5/2.</em>
<em>So 4/1 x 5/2 = 20/2, which can be simplified as 10.</em>
<em>So there are 10 stops. </em>^-^
Let's call the width of our rectangle and the length . We can say , since the length is equal to 4 cm greater than the width.
Also remember that the perimeter of a rectangle is the sum of two times the width and two times the length, or . To solve this problem, we can substitute in the information we know, as shown below:
Now, we can substitute in the width we found into the formula for length, which is :
The width of our rectangle is cm and the length of our rectangle is