Answer:c
Step-by-step explanation:
9514 1404 393
Explanation:
Divide the figure into areas for which you have a surface area formula. Use the appropriate formula for each area, then add up the results.
Formulas are available for surface areas of a cone, cylinder, sphere, pyramid, rectangular prism, and for plane shapes that are circles, ellipses, triangles, rectangles, trapezoids, and regular polygons.
Most of the figures for which you are asked to find the area will decompose to some subset of these shapes. Take care to identify the relevant dimensions of each of the constituent parts of the area, and to make sure that all parts are accounted for. Do not allow your parts of the area to overlap, unless you intend to account for that overlap by subtracting the area that is counted more than once.
Also, use your common sense. A semicircle will have half the area of a circle, for example.
In some cases, it may be expedient to compute the area of a larger figure than the one you have, then subtract the part of that area that is missing from your figure.
Answer: 6
Step-by-step explanation: okay. Here we go. This will be long.
You have to use the inverse operation. That means use the opposite operation. For example, the opposite operation of addition is subtraction. So let’s ignore the 3x for now. That means the equation is +2=20. The inverse operation of addition is subtraction. So we subtract 2 from 20. That equals 18. Then we subtract 2 from 2. That equals 0. Now our equation is =18. Now remember 3x? You bring that back in. So our equation is 3x=18. See what I did? I simplified the equation. 3x means “3 times x” because x is a variable. And the opposite of times (multiplication) is division. So you divide 3 from 18. That equals 6. And we divide 3 from 3x. That equals 1x. Ax is basically the same thing as x. So now what doe we have left? X= 6. Your answer is 6.
The answer is: "
1 " .
______________________________________________________ "
x = 1 " .
______________________________________________________Explanation:______________________________________________________Write as a fraction:
______________________________________________________ ;
Reduce the "
" to "
:
Since "(4/2) = (4÷2) / (2÷2) " = "(2/1)" ;
________________________________________________________And we rewrite as:
________________________________________________________ ;
as we can see: "
x = 1 " .
________________________________________________________
Answer:
700 ounces
Step-by-step explanation:
if the gold weighs 2x as much as the silver
you just do 350 x2
350 x2 = 700