[(21 + 6) − 3^2] ÷ 9 ⋅ 2=[(27) − 9] ÷ 9 ⋅ 2
=18 ÷ 9 ⋅ 2
= 2 . 2
= 4
C) opposite of a sum property
123 - Use PEMDAS but since you have both division and multiplication you can just go from left to right
Answer:
22.75 minutes or 22 minutes 45 seconds
Step-by-step explanation:
Okay, this is a working together question. Let’s walk through it together!
Firstly, let’s say the total volume of the swimming pool is x sq.meters
Now, the rate of the smaller hose would be x/65 while that of the larger will be x/35
Now, their combined rate would be x/65 + x/35 = 100x/2275
Now, since the volume is x, the time taken is simply, the volume divided by the joint rate. That is mathematically equal to x divided by 100x/2275
x * 2275/100x = 2275/100 = 22.75 minutes or 22 minutes 45 seconds
Answer:
x=26
Step-by-step explanation:
let take the 3rd angle of the triangle y
2x + 76 + y = 180 ( angle sum property)
y = 180 ‐ 76 ‐ 2x
y = 104 ‐ 2x
5x ‐ 2 + y = 180 ( linear pair)
5x‐2+104‐2x = 180 ( y = 104 ‐ 2x)
3x+102=180
3x=180‐102
x=78/3
x=26
hope this ans will help u