Answer:
0.3
Step-by-step explanation:
also its not a sum, its called a product :)
I think it's 36. Because 7x3=21 and 12x3=36
Answer:
Mikhail is 5 years old
Step-by-step explanation:
Represent each member with a variable.
X= Gabrille
Y=Mikhail
X+Y=20 (sum of their ages is 20)
X=3y (Gabrille is 3 times Mikhails age)
Substitute 3Y into the first equation (simultaneous equation)
. 3y+y=20
. 4y=20 (divide both sides by 4)
y=5
To check your answer.
X+5=20
X=20-5
X=15
15 is 5 times 3.
Answer:
x'= (-11,-8)
Step-by-step explanation:
First, make a graph and plot point "x" (the rest of the points are unnecessary)
Next, count how many units (from point "x") it takes you to get to the x-axis (which is the horizontal line) The answer to that is 8
Then, from the point you ended on, count 8 down. You should get (-11,-8)
