Answer:
49
Step-by-step explanation:
First plug in 7 for x and solve
7(14-7)
7(7)
49
Step-by-step explanation:
8248 rounded off to 8250
9508 rounded off to 9510
Answer:
28 minutes
Step-by-step explanation:
1/8 school in 3 1/2 minutes
To feed the entire school multiply by 8
3 1/2 * 8
Change the mixed number into an improper fraction
3 1/2 = (2*3+1)/2 = 7/2
7/2 *8 = 56/2
28
28 minutes
Using Pythagoras theorem :
C = sqrt(a^2 + b^2)
C = sqrt(36+64)
C = sqrt(100)
C = 10 feet
Step-by-step explanation:
First no. is 12
Second no. is 8
Third no. of 25
Way 1 of grouping the numbers,
(12×8)×25
We can use associative law of multiplication as follows :
(a×b)×c = a×(b×c)
(12×8)×25 = (96) × 25
= 2400
Way 2,
12×(8×25) = 12 × 200
= 2400
Way 2 is easier to simplify because when we multiply 8 and 25, we get 200. It is very easy to multiply any number with a number that have zeroes. As a result we easily get the answer i.e. 2400.