Answer:
15 kg, 22.5 kg, 52.5 kg
Step-by-step explanation:
Let the common multiplier of the given ratios be x. Therefore, weights of each bag would be 2x, 3x and 7x
According to the given information:
Hence the weight of sand in bag would be 15 kg, 22.5 kg and 52.5 kg
1. To find out if (0,3) is a solution to y = x +3 you replace x and y with (0,3)
y = x + 3
3 = 0 + 3
3 = 3 Correct
The answer is YES
2. To find out if (1,-4) is a solution to y = -2x you replace x and y with (1,-4)
y = -2x
-4 = -2(1)
-4 = -2 Incorrect
The answer is NO
Answer:
9x⁻² is not a polynomial
Step-by-step explanation:
A polynomial function is a function that involves non-negative integer powers of x such as a quadratic, cubic etc.
A polynomial is a function written in the form of ;
f{x} =aₙxⁿ+aₙ₋₁xⁿ⁻¹+-------+a₂x²+a₁x+a₀
The degree of a polynomial is the highest power of x in the expression
9x⁻² ----in this case, the power is negative thus this is not a polynomial.
Answer:
The value is 
Step-by-step explanation:
From the question we are told that
The number of singers is 
The sample size is 
The number the number of singers who are professional is k = 19
The proportion of professional singers is mathematically represented as
=> 
=> 
The percentage estimate of singers who are professional is
Answer:
32x-435
Step-by-step explanation:
(35x-410) - (3x+25)
35x-3x=32x
-410-25=-435
