Avg. speed Joanna runs: 7.5km/h
how much she runs everyday: 15km
15km/7.5= 2 hours of running time everyday
She leaves at 8:30, comes back at ?
8:30+ 2:00= 10:30
Joanna arrives back at 10:30a.m.
Answer:
B) 2
Step-by-step explanation:
Given expression,
48 ÷ ((2 + 6) × 2) − 1
In simplification we follows the following order,
B = Bracket
O = Of
D = Division
M = Multiplication
A = Addition,
S = Subtraction,
Thus, steps of solving the given expression by following BODMAS are as follow,





Hence, OPTION B is correct.
Answer:
63.8
Step-by-step explanation:
to the tenth
1 yard equals 36 inch therefore 6 yard will be 36x6 and 8 yard 36x8
27x + 9
------------
3
Break down the fraction. 3 is the common denominator, so it is the denominator of both numerators.
27x/3 + 9/3 = 0
9x + 3 = 0
9x = -3
x = -3/9 simplified to x = -1/3
Or simply multiply the fraction with 3/1 to remove the denominator, which is 3.
27x + 9 3 27x + 9
----------- x ------- = ----------------- or 27x + 9 = 0 ; look for x.
3 1 1
To check: Substitute x by its value:
(27x + 9) / 3 = 0 ⇒ ((27 * -1/3) + 9) / 3 = 0
⇒ (-9 + 9)/3 = 0 ⇒ 0/3 = 0 ⇒ 0 = 0