Answer:
48
Step-by-step explanation:
- 8×6=48 a dice has six faces
To do this, you need to look on the graph and it's not hard from there.
Given the value of p and b in the equation (( p-2b ) / 2 ), the value of m is 20.
<h3>What is the value of m?</h3>
Given that;
- m = ( p-2b ) / 2
- p = 57.4
- b = 8.7
- Value of m = ?
First, we substitute the value of p and b into the equation.
m = ( p-2b ) / 2
m = ( 57.4 - 2(8.7) ) / 2
m = ( 57.4 - 17.4 ) / 2
m = 40 / 2
m = 20
Given the value of p and b in the equation (( p-2b ) / 2 ), the value of m is 20.
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The 10 tons should have 37.9% cement.
Let the 25% mixture be x tons
Then the 68% mixture will be (10 -x) tons.
Using formula for mixtures:
Let p for percentage and w for weight in tons.
p₁w₁ + p₂w₂ = pw
25*x + 68*(10-x) = 37.9*10
25x + 680 - 68x = 379
680 - 43x = 379
680 - 379 = 43x
301 = 43x
43x = 301
x = 301/43
x = 7
Recall that x, was for the 25% mixture, 7 tons.
a) For the 68% mixture, = 10 - x = 10 -7 = 3 tons.
b) For the 25% mixture = x = 7 tons.
Answer:
Step-by-step explanation:
a1=50 r=1.05 n=12
