Answer:
The answer to #7 is -4
Step-by-step explanation:
-2(x-3y)
-2( (-4) - 3(-2) )
-2 (-4+6)
-2(2)
-4
Answer:
sorry this is very confus OJ g
Answer:
13/2=X or 6.5=X
Step-by-step explanation:
first you add 5 and 3 then you get 8
second you subtract the 8 you just got from the one in ( ) and you get 13=2x
Third you divide 13 and 2 and when you do that you get 6.5=X but if you not supposed to do it in a decimal form then is 13/2=X
Answer:
Option C. is nonlinear.
There is no specified degree in option C's equation, so it is impossible for it to be a linear equation.
Answer:
9Kg, 18Kg and 63 Kg
Step-by-step explanation:
Sum the parts of the ratio, 1 + 2 + 7 = 10 parts
Divide the weight of sand by 10 to find the value of one part of the ratio
90 Kg ÷ 10 = 9 Kg ← value of 1 part of the ratio, thus
2 parts = 2 × 9 Kg = 18 Kg
7 parts = 7 × 9 Kg = 63 Kg
Thus the weights of each bag are 9 Kg, 18 Kg and 63 Kg
