Answer:
3x² + 30x
Step-by-step explanation:
width of a box = x units.
height of a box = 3 units.
length of a box = (x + 10) units.
Volume of the box = length × width × height
= (x + 10) * x * 3
= (x + 10) * 3x
= 3x² + 30x
Volume of the box = 3x² + 30x
Answer: The lamppost is 7 feet 2 inches
Step-by-step explanation: If Ann measured her own height and her shadow, then what she used is a ratio between both measurements. If she can measure the shadow of the lamppost, then she can use the same ratio of her height and it’s shadow to derive the correct measurement of the lamppost.
If Ann’s height was measured as 5 feet 3 inches, and her shadow was 8 feet 9 inches, the ratio between them can be expressed as 3:5.
Reduce both dimensions to the same unit, that is, inches. (Remember 12 inches = 1 foot)
Ratio = 63/105
Reduce to the least fraction
Ratio = 3/5
If the height of the lamppost is H, then
H/144 = 3/5
H = (144 x3)/5
H = 86.4
Therefore the lamppost is approximately 86 inches, that is 7 feet and 2 inches tall.
Add up how much gets paid and how many hours he work I hope this helps good luck !!!!!!!!!!!!!!!
Answer:
30%
Step-by-step explanation:
first we require both quantities to have the same units
converting both to minutes
1 h 3 min = 60 + 3 = 63 min
3h 30 min = (3 × 60) + 30 = 180 + 30 = 210 min
then express as a fraction and multiply by 100% to express as a percentage
× 100%
= 0.3 × 100%
= 30%
I do not know this answer but I think you have to number and times it by 2