63/9 + 40 - 35/7 =
7 + 40 - 5 =
47 - 5 =
42 <==
Answer:
x = 1
Step-by-step explanation:
Solve using inverse operations
5 ( x + 2 ) - 7 = 3x + 5
first distribute the 5
5x + 10 - 7 = 3x + 5
simplify the expression
5x + 3 = 3x + 5
Inverse operations, then simplify
5x + 3 = 3x + 5
-3 -3
5x = 3x + 5 - 3
5x = 3x + 2
-3x -3x
2x = 2
/2 /2
x = 1
Step-by-step explanation:
step 1. very tough question! you need the slant height (h)
step 2. h = sqr(8^2 + 3^2) = sqr(73) sqr is the square root
step 3. SA = B + ph/2 where SA is the surface area, B is the base area, and p = the lateral perimeter
step 4. we will call the hypotenuse of the right triangle c
step 5. c = sqr(13^2 + 6^2) = sqr(205)
step 6. SA = (1/2)13(6) + (13 + 6 + sqr(205))sqr(73)/2
step 7. SA = 39+ (33.3178)(8.5440)/2 = 181.3336 cm^2.
10.50 x 0.2 = $2.10
Therefore, 20% of $10.50 is $2.10
With 20% off, the book will cost
10.50-2.10 = $8.40
