Answer:
6
Step-by-step explanation:
x = number of questions answered correctly
y = number of questions answered incorrectly
18x - 24y = 72
x = 2y
18*(2y) - 24y = 72
36y - 24y = 72
12y = 72
y = 72/12
y = 6
Answer:
x = -5
Step-by-step explanation:
First distribute the 5 on the right side of the equation.
10x - 35 = 15x - 10
Then subtract 10x on each side
-35 = 5x - 10
Then add 10 on each side
-25 = 5x
Divide 5 on each side to get x
-25 / 5 = -5
I hope this helps! :)
Answer:
we go with the largest part first just like a rectangle cuboid.
Area = 4 x 2 = 8sq2
Volume = 8 x 3 =24 sq3
Step-by-step explanation:
Answer:
840
Step-by-step explanation:
7*6*5*4=840
