Question

The area of trapezoid can be found using the formula 1/2h(b+B) if the area of trapezoid is 100 sq in. With a height of 10 and base of 12 determined. The length of the base

Answer 1

@wateriyenes

Answer 2

Hint: 100=0.5*10*(12+B)

Answer 3

100=60b?

Answer 4

@allank

Answer 5

how'd u get that 60 on the right side?

Answer 6

10x12+2?

Answer 7

not quite...
according to the hint given by allank, you need to multiply the 0.5 * 10 first, then distribute:
\(\large 100=\color {red}{(\frac{1}{2})(10)}(12+B) \)
\(\large 100=(5)(12+B) \)

Answer 8

can you figure out what the next line would be from here? hint: distribute the right side...

Answer 9

100=60+b

Answer 10

not quite.... try again...
just working on the right side, 5(12+B) =

Answer 11

Is it 40?

Answer 12

\(\large (5)(12+B)=5\cdot 12 + 5 \cdot B \rightarrow 60+5B \)
that is what you should have on the right side....
now replace that right side with the one i have and solve....

Answer 13

solve:
\(\large 100=60+5B \)

Answer 14

40/5?

Answer 15

simplify....

Answer 16

B = 40/5 = ???

Answer 17

The answer is 8

Answer 18

yes...

Answer 19

Thanks

Answer 20

yw..