Answer:
x = 1
Y = 1
Step-by-step explanation:
A. 3(2x-3y= - 1)
6x-9y=- 3
B. -2(3x-4y= - 1)
- 6x+8y=2
Add both equations:
(6x-9y= - 3) + (- 6x+8y=2)
-y= - 1
3x - 4(1) = - 1
3x-4= - 1
3x = 4 - 1
= 3/3 = 1
Answer:
A. 7ac(^4sqrt. ab^2)
Step-by-step explanation:
just took the quiz on edg.
Answer:
It's easy
Step-by-step explanation:
Use the order of operations in reverse to isolate the variable on one side of the equation. The order of operations is PEMDAS -- parentheses, exponents, multiplication, division, addition and subtraction. When solving for a variable, use the order in reverse -- SADMEP.
Perform the opposite operation to what is called for in the equation. If the equation requires you to multiply, you will divide. If the equation calls for subtraction, you will add.
Repeat the same operation on both sides of the equation. In the area of the triangle example, you arrived at the formula 100=1/2 (20h). You want to get the “h” by itself on one side of the equation. Multiply both sides of the equation by 2 to counteract the effect of the “1/2.” You then have 200=20h. Divide both sides of the equation by 20 to isolate the “h.” You find out that h=10.
Source: https://sciencing.com/value-variable-geometry-12158741.html
Answer:
140 zombies
Step-by-step explanation:
Since this is a proportions problem and we are given three values and a variable we must solve for which is the number of zombie soldiers she can raise (z) with 10 dark power crystals. Therefore, we can use the rule of three to solve for this, in which we multiply the diagonal values and divide by the last remaining value in order to solve for the variable like so...
1 crystal <===> 14 zombies
10 crystals <===> Z zombies
(10 * 14) / 1 = 140 zombies
