Answer:
72 sq ft
Step-by-step explanation:
A square room means ecah side is equal. so 12*12= 144.
12 times 6 (for the height)= 72 sq ft
Answer:
30 mi/ 24 mi (6 mi slower)
Step-by-step explanation:
distance = rate x time
distance = 20 mph * X hr = 20 X miles
return trip:
distance = 16 mph * X hr + 6 miles = 16X + 6
They are the same:
20X = 16X + 6
4X = 6
X = 6/4 = 3/2
20 mph * 3/2 hr = 30 miles.
On the return trip: 16 mph * 3/2 hr = 24 miles, which is 6 miles short of 30 mi.
The distance is 30 miles.
The bird flies all 30 miles in 3/2 hr = 1 and 1/2 hour = 1 hour 30 minutes.
On the return trip, the bird flies 24 miles in 1.5 hours, which is 6 miles short.
Answer:
116.6 pounds
Step-by-step explanation:
Set up a proportion where x is the weight of her desk in pounds:
= ![\frac{x}{53}](https://tex.z-dn.net/?f=%5Cfrac%7Bx%7D%7B53%7D)
Cross multiply:
x = 116.6
So, her desk is 116.6 pounds
Answer:
5
Step-by-step explanation:
5x=12+3
5x=15
X=15/3
X=5
Answer:
-4x-7
Step-by-step explanation:
![-1/4(16x+12)-4= \\\\-4x-3-4= \\\\-4x-7](https://tex.z-dn.net/?f=-1%2F4%2816x%2B12%29-4%3D%20%5C%5C%5C%5C-4x-3-4%3D%20%5C%5C%5C%5C-4x-7)
Hope this helps!