You have to add the areas of the three rectangles.
A1 = 39*11 = 429 m²
A2 = (39-12)*7 = 27*7 = 189 m²
A3 = 10*6 = 60 m²
A = 429 + 189 + 60 = 678 m².
Hope this helps !
Photon
First method: by the rule of three:
126 miles---------------------3 hours
x---------------------------------7 hours
x=(126 miles * 7 hours) / 3 hours=294 miles.
Answer: 294 miles.
Second method:
Speed=distance/ time ⇒distance=speed x time
We calculate the speed of the car:
Speed=126 miles/3 hours= 42 miles/hour.
Data:
Speed=42 miles/hour
time=7 hours
Distance=speed x time
Distance=(42 miles/hour)(7 hours)=294 miles
answer: 294 miles.
It’s D because 2x6 is 12 then 3x2 is 6 then 12-6=6
Answer:
C. 3¾
Step-by-step explanation:
Number of hours spent per evening reading the book = ⅜ hr
Number of evenings it took to complete reading the book = 10
Total number of hours spent in reading = ⅜ × 10 = 30/8
Simplify
= 15/4
= 3¾ hours