Answer:
14,800in^2
Step-by-step explanation:
ok so to find the area of a trapezoid, we use the equation A=((a+b)/2)h. So Area is equal to base a (the one on the top) plus base b (the one on the bottom) divided by two (so a+b/2) and then multiply that number by h (the height. So we do it like this
(145+225)/2 x 80
But remember, we follow PEMDAS, so we multiply first
(a+b)80
370(80)= 29600
now we can divide
29600/2= 14,800sq in (or in^2)
14800
(145+225)x80 and divided by 2
To divide 7/9 by 2 13/18, convert the mixed number to an improper fraction, then multiply the fractions and simplify. The result is 42/141.
To divide 7/9 by 2 13/18, we need to convert the mixed number 2 13/18 into an improper fraction. To do this, we multiply the whole number (2) by the denominator of the fraction (18) and add the numerator (13). This gives us 47. So, 2 13/18 can be written as the improper fraction 47/18.
Now, we can divide 7/9 by 47/18. We multiply the first fraction by the reciprocal of the second fraction (flip the numerator and denominator). So, (7/9) ÷ (47/18) becomes (7/9) × (18/47).
To multiply fractions, we multiply the numerators together and the denominators together. This gives us (7/9) × (18/47) = (7 × 18) / (9 × 47) = 126/423.
Lastly, we can simplify the fraction by dividing the numerator and denominator by their greatest common divisor. The GCD of 126 and 423 is 3. Dividing both numerator and denominator by 3 gives us the simplified answer: 42/141.
#SPJ2