To answer this item, we are first to determine the common factor between the amounts of the cement, sand, and gravel.
If we let x be this factor, the amount of the cement would be x. Similarly, the amount of sand is 3x, and lastly the amount of gravel is 4x. Then, we establish the equation that would let us relate the amounts.
x + 3x + 4x = 480
Simplifying,
8x = 480
x = 60
Hence, the amount of cement is 60 kg, that of sand is 180 kg. Lastly, the amount of gravel is 240 kg.
Answer:
$4250
Step-by-step explanation:
Answer:
n = 3.8
Step-by-step explanation:
0.3(n - 5) = 0.4 - 0.2n
Distribute
.3n - 1.5 = .4 - .2n
Add .2n to each side
.3n +.2n -1.5 = .4 -.2 +.2n
.5n -1.5 = .4
Add 1.5 to each side
.5n -1.5 +1.5 = .4+1.5
.5n = 1.9
Divide each side by .5
.5n/.5 = 1.9/.5
n =3.8
Answer:
Major arc
Step-by-step explanation:
Minor arcs measure less than the semicircle
Major arcs measure more than the semicircle
It is B and D because it is the only one that matches the input and outputs. D shows a perfect graph of the points while B shows the points themselves. They cannot be a linear function since they are not linear so it is not E or F.
