Answer:
The quantity of first mixture = x = 75 pounds
The quantity of second mixture = 175 - x = 175 - 75 = 100 pounds
Step-by-step explanation:
Total quantity of mixture = 175 pounds
Let quantity of first mixture = x
Quantity of second mixture = 175 - x
From the given information
x (0.9) + (175 - x) × 1.6 = 175 × 1.3
By solving above equation we get
0.9 x + 280 - 1.6 x = 227.5
0.7 x = 52.5
x = 75 pounds
Thus the quantity of first mixture = x = 75 pounds
The quantity of second mixture = 175 - x = 175 - 75 = 100 pounds
Answer:
Volume: 2000 cm^3 Surface Area: 1360cm^2
Step-by-step explanation:
Ok, so we know the formula for volume is length x width x height, so we can substitute in the numbers given, so we end up with:
25 x 4 x 20
when we multiply them together, we get:
2000cm^3. That's the volume.
The formula for Surface Area is:
S.A.=2(lw+wh+lh) . Now we substitute in the numbers given
S.A.=2( (25 x 4)+(4 x 20)+(25 x 20)) . Then we add and multiply, so we get:
S.A. = 1360cm^2
The Surface Area is 1360cm^2.
Hope this helped, sorry if I was wrong somewhere!
~Mschmindy
To point plots on a graph, take the following steps:
1. Identify the x-coordinates and y-coordinates from the variable/data you have. It should be written in this form: (x, y)
2. Label both axes on the graph(x-axis and y-axis). The x-axis is usually on the horizontal line while the y axis is the horizontal line.
3. Start plotting your first 2 points on both axes (usually the numbers on first row). Plot the x value and also plot the y value at the appropriate points
4. Finally, Continue plotting the numbers by pointing each point on the graph (take them in rows)
Answer:
78.5
Step-by-step explanation:
πr²
= π×5²
= 25π
= 78.5
Answer: c. 1 kilogram
Step-by-step explanation:
