Answer:
2x + 4.8y +13.2
Step-by-step explanation:
1. (4)(0.5x+2.5y+−0.7+−1.3y+4)
2. (4)(0.5x)+(4)(2.5y)+(4)(−0.7)+(4)(−1.3y)+(4)(4)
3. 2x+10y−2.8−5.2y+16
4. 2x + 4.8y +13.2
I hope this helped, please mark Brainliest, thank you!!
The ABE and DBC are both made of DBE and and ABD or EBC so if the firsts are equal than these are also equal
Answer:
The equation for direct variation is y=kx. Direct variation is when 2 variables both change in the same direction. This means that if one variable increases, then the other does as well and vice versa. In this equation, k is the constant of variation. The constant of variation represents the relationship between the 2 variables. Additionally, the k value does not change.
To solve for k, divide both sides by x. This creates the new equation y/x=k. Using this equation, you can take 2 variables, divide them, and find the constant of variation.
For example, take the values x={1,2,3,4} and y={2,4,6,8}. Using the equation y/x=k, we can find the constant of variation. When plugging the first values of each set into the equation you get 2/1. This equals 2, proving that k=2. Even if you use the other values, like 8/4, k still equals 2.
Exact form: -4/9
Decimal form: -0.4
