Answer:
B
Step-by-step explanation:
18+12=30
30X4=120
120/2=60
You need to add the bottom and the top of the trapezoid, times the height, and divided them by two.
Answer:
y=5 x=13
Step-by-step explanation:
solve simultaneously
4x-9=7
+-4x+6y=8
---------------
3y=15
y=5
substitute y value into first equation
4x-9(5)=7
4x-45=7
4x=52
x=13
Answer:
65/66
Step-by-step explanation:
Find the reciprocal of the second number (11/13), which you find by flipping the top and bottom number so it would be 13/11. Now multiply the top two numbers which are 5 and 13, that equals 65. Multiply the bottom numbers, 6 and eleven which is 66. That is how you get 65 over 66.
