Answer:
33cm
Step-by-step explanation:
area of a rectangle= length ×width
Let x be the length
990=x( x-3)
990=x^2-3x
x^2-3x-990=0
x^2+30x-33x-990=0
x(x+30)-33(x+30)=0
(x-33)(x+30)=0
x=33, x=-30
length is positive so it'll be 33cm
Answer:
b. 300x1 + 125x2 < = 4,000
Step-by-step explanation:
Maximum of 4,000 hours
This means that the the total amount of labor has to be of at most 4,000, that is:
300 ping-pong balls (x1) or 125 wiffle balls (x2) can be produced per hour of labor
The total amount of labor is:
Uniting the two equations:
And thus the correct answer is given by option b.
Hello,
Volume of the square pyramid=
1/3×B×h where B represent Base and h represent height
Now, substitute the information that we had from this problem into the formula.
47.25=1/3×B×7
Times 3 from both side
141.75=7B
Divide B from both side
B=20.25 square inches
B=s^2
Square root it to get
s=4.5 inches. As a result, the side length of square base is 4.5 inches. Hope it help!
3/4 x
÷ = ÷
1/4 1
(4) 1/4x = 3/4 (4)
1x=3
final answer: dan can paint 3 walls
