Answer:
<h2>120 cm³</h2><h2 />
Step-by-step explanation:
this is a ratio and proportion of two similar solids
vol A = 60 cm³ and A = 3cm
vol B = ? and B = 6 cm
<u> 60 </u> = <u> 3 </u>
B 6
do cross multiply:
3B = 60(6)
B = 120 cm³
therefore, the vo. of B is 120 cm³
You need to find common factors. The factors of 88 are 1 and 88, 2 and 44, 4 and 22, and 8 and 11. The factors of thirty are 1 and 30, 2 and 15, and 5 and 6. The greatest common factor is 2 so the ratio is 44:15.
The answer is 20 stamps.
You can solve this by forming an equation with.
We know that she has a total of 50 at the end. So we will put the 50 stamps at the end of the equation and derive for the unknown.
She first gave 10 to her friend. This means we subtract first 10 from the unknown. Let x represent the unknown.
x-10
Afterwards Jane's mom bought her twice as many as she had at the beginning. So we know that we add twice as much as the unknown.
x-10+2x = 50
Now we solve. Let's arrange our terms by combining like terms:
3x - 10 = 50
Now we transpose the 10 to the other side of the equation:
3x = 50 + 10
3x = 60
And finally we transpose the 3 by the x to isolate x:
x = 60/3
= 20
She had 20 stamps in the beginning.
Answer:
1808.64 in²
Step-by-step explanation:
We can first convert 9 cm into 24 in using the scale. From there on outwards, we know that the area of a circle is equal to πr², so we just plug in 3.14 for π and 24 in for r. Then, we get 576(3.14) and finally 1808.64 in².
By the way, the scale is wrong. It should be 8 cm = 3 in, not 3 cm = 8 in.
